CN102194908A - Sealing material plate with wavelength conversion material and solar battery with the same - Google Patents
Sealing material plate with wavelength conversion material and solar battery with the same Download PDFInfo
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- CN102194908A CN102194908A CN2011100216498A CN201110021649A CN102194908A CN 102194908 A CN102194908 A CN 102194908A CN 2011100216498 A CN2011100216498 A CN 2011100216498A CN 201110021649 A CN201110021649 A CN 201110021649A CN 102194908 A CN102194908 A CN 102194908A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The present invention provides a sealing material plate with a wavelength conversion material and a solar battery with the same for improving a photoelectric conversion efficiency of the solar battery. The solar battery module is provided with the following components: a piece of surface glass, sealing material, a solar cell unit and a back plate. The sealing material is mixed with fluophor which transmits out green light to near infrared light through excitation by near ultraviolet light to blue light. The fluophor has an excitation band above 300 nm. The excitation end wavelength of the long wavelength side is between 410 nm and 600 nm. The parent material of the fluophor comprises a random component which is selected from: (Ba.Sr)2SO4, (Ba,Sr,Ca)2SiO4, Ba2SiO4, Sr3SiO5, (Sr,Ca,Ba)3SiO5, (Ba,Sr,Ca)3MgSi2O8, Ca3Si2O7, Ca2ZnSi2O7, Ba3Sc2Si3O12 and Ca3Sc2Si3O12. Because high efficiency of wavelength conversion is obtained, the structure can improve photoelectric conversion efficiency of the solar battery.
Description
Technical field
The present invention relates to the technology of material for transformation of wave length, particularly luminous by fluorophor irradiation black light～blue light is excited, causes, and then carry out wavelength Conversion, improve the technology of the efficient of solar cell.
Background technology
In general, the quantum efficiency of solar cell is lower than the zone at green light～near infrared light in the zone of ultraviolet light～blue light.Therefore, light by the ultraviolet light～blue light wavelength among the light wavelength composition that will arrive solar cell carries out the light that wavelength Conversion becomes green light～near infrared light, thereby the light of the wavelength region may that the quantum efficiency that increases solar cell is high can improve the efficient of solar cell thus.Always known have by in the path that arrives solar cell at light Wavelength conversion film being set, thereby improve the efficient of solar cell.
For example, in patent documentation 1, fluorescent colorant is used as material for transformation of wave length.In addition, in patent documentation 2, use the ORMOSlL complex that contains the terres rares complex.In addition, in non-patent literature 1, use Organometallic complexes.Yet, for the technology and above-mentioned fluorescent colorant and Organometallic complexes of record in the non-patent literature 1,, therefore be difficult to keep between long-term function as the used for solar batteries material for transformation of wave length because durability is insufficient.In addition the wavelength Conversion quantum efficiency of Organometallic complexes be about 0.6 low, also become problem.In addition, though in patent documentation 3, record the used for solar batteries material for transformation of wave length that uses fluorophor, but in patent documentation 3, do not record the numerical value of concrete efficient raising amount, even the effect of the raising of generating efficiency is also insufficient in patent documentation 4.
Patent documentation 1: TOHKEMY 2001-7377 communique
Patent documentation 2: TOHKEMY 2000-327715 communique
Patent documentation 3: TOHKEMY 2003-218379 communique
Patent documentation 4: Japanese kokai publication hei 7-202243 communique
1: the 58 times chemistry of coordination compounds discussion preliminary drafts of non-patent literature collection 1PF-011
Summary of the invention
Material for transformation of wave length at used for solar batteries uses under the situation of Organometallic complexes, how to improve its durability and becomes problem.In addition, the quantum efficiency of the wavelength Conversion of Organometallic complexes be about 0.6 low, this also becomes problem.Therefore, carried out the fluorophor of inorganic based compound is used as the effort of used for solar batteries material for transformation of wave length.Yet, for the wavelength conversion efficiency of in the past material for transformation of wave length, do not reach the degree of the photoelectric conversion efficiency of abundant raising solar cell, require further to improve photoelectric conversion efficiency.
The present invention develops in view of above-mentioned problem, and its purpose is to provide the wavelength conversion efficiency that can improve material for transformation of wave length, the structure that can improve the photoelectric conversion efficiency of solar cell.
Summary to representational invention among the invention disclosed among the application is simply described as follows.
A kind of encapsulant plate, the encapsulant plate that its encapsulant of serving as reasons the protection solar cell constitutes is characterized in that be mixed with fluorophor in aforementioned encapsulant, the fertile material of aforementioned phosphors comprises (Ba, Sr)
2SiO
4, (Ba, Sr, Ca)
2SiO
4, Ba
2SiO
4, Sr
3SiO
5, (Sr, Ca, Ba)
3SiO
5, (Ba, Sr, Ca)
3MgSi
2O
8, Ca
3Si
2O
7, Ca
2ZnSi
2O
7, Ba
3Sc
2Si
3O
12, Ca
3Sc
2Si
3O
12In any.
In addition, a kind of encapsulant plate is characterized in that, with regard to other fluorophor, fertile material is by MMgAl
10O
17The compound of expression, M is wantonly a kind or the multiple element that is selected among Ba, Sr, the Ca, is added with any one or more element among Eu, the Mn as luminescence center.
In addition, the main execution mode of other execution mode of the present invention is the solar module with transparency carrier, encapsulant, solar battery cell and backboard.In addition, also exist watch crystal be used for solar batteries half tempered glass, have the situation of antireflection film.Solar module is characterised in that, comprises fluorophor in the path till light arrives solar battery cell, and the fertile material of aforementioned phosphors comprises (Ba, Sr)
2SiO
4, (Ba, Sr, Ca)
2SiO
4, Ba
2SiO
4, Sr
3SiO
5, (Sr, Ca, Ba)
3SiO
5, (Ba, Sr, Ca)
3MgSi
2O
8, Ca
3Si
2O
7, Ca
2ZnSi
2O
7, Ba
3Sc
2Si
3O
12, Ca
3Sc
2SiO
12In any.
In addition, a kind of solar module is characterized in that, as the fluorophor of aforementioned solar module, fertile material is by MMgAl
10O
17The compound of expression, M is wantonly a kind or the multiple element that is selected among Ba, Sr, the Ca, is added with any one or more element among Eu, the Mn as luminescence center.
In the present invention, because therefore the efficient height of material for transformation of wave length, can improve the photoelectric conversion efficiency of solar cell.In addition, in the present invention, use fluorophor as material for transformation of wave length, because the fluorophor excellent in stability, thereby can realize the solar module that reliability is high.
In addition, by in the encapsulant plate, sneaking into fluorophor, can realize the solar module productivity ratio excellence, that photoelectric conversion efficiency is high as material for transformation of wave length.
Description of drawings
Fig. 1 is the ideograph of the solar module when being mixed with material for transformation of wave length in encapsulant.
Fig. 2 is the ideograph of the solar module when having formed wavelength conversion layer between encapsulant and solar cell device.
Fig. 3 is the ideograph of the solar module when being mixed with material for transformation of wave length in antireflection film.
Fig. 4 is the ideograph of the solar module when having formed wavelength conversion layer between antireflection film and watch crystal.
Fig. 5 is the ideograph of the light-focusing type solar power generating device when solar module is put into the concentrating solar battery.
Fig. 6 excites the curve chart of the interdependence of end wavelength to material for transformation of wave length for the generation power recruitment of expression solar cell.
Fig. 7 is the curve chart of the particle diameter interdependence of expression light scattering intensity.
Fig. 8 is the excitation spectrum and the luminescent spectrum of material for transformation of wave length of the present invention.
Fig. 9 is the excitation spectrum and the luminescent spectrum of other material for transformation of wave length of the present invention.
Figure 10 is the excitation spectrum and the luminescent spectrum of other material for transformation of wave length of the present invention.
Figure 11 is the excitation spectrum and the luminescent spectrum of other material for transformation of wave length of the present invention.
Figure 12 is the excitation spectrum and the luminescent spectrum of other material for transformation of wave length of the present invention.
Figure 13 is the excitation spectrum and the luminescent spectrum of material for transformation of wave length of the present invention.
Figure 14 is the curve chart of the luminous intensity of expression material for transformation of wave length of the present invention to the interdependence of interpolation concentration.
Description of reference numerals
1 solar module, 2 watch crystales, 3 encapsulants, 4 solar cell devices, 5 backboards, 6 antireflection films, 7 material for transformation of wave length, 8 Wavelength conversion films, 9 collector lenses, 10 carriages, 11 substrates.
Embodiment
The structure of solar module
The structure of solar module of the present invention is shown in Fig. 1.With regard to solar module 1, comprise the watch crystal 2, encapsulant (transparent resin) 3, solar battery cell (solar cell device) 4 and the backboard 5 that are arranged at the sunlight light incident side.Sunlight light incident side at watch crystal 2 is formed with antireflection film 6.Though preferably have antireflection film, also can not have.
With regard to watch crystal 2, its composition if Merlon, acrylic resin, polyester, fluorinated polyethylene etc. do not hinder the transparent material of sunlight incident, just can use except glass.In addition, encapsulant 3 has the effect as protective material, according to covering the mode that light energy is converted to the solar battery cell 4 of electric energy is disposed.In addition, as encapsulant, except EVA (vinyl-vinyl acetate copolymer), also can use Embedding Material (Port ッ テ ィ Application グ material), polyvinyl butyral resin of silicon etc.
As solar battery cell 4, can use various solar cell devices such as monocrystaline silicon solar cell, polysilicon solar cell, filming compound semiconductor solar cell, non-crystal silicon solar cell.With regard to this solar battery cell 4, in solar module 1, dispose 1 to a plurality of; Be electrically connected by interconnector (interconnector) disposing under a plurality of situations.In addition, as backboard 5,, can be made into metal level and plastic membranous layer in order to have weatherability, high-insulativity and intensity.
As shown in Figure 1, with regard to material for transformation of wave length 7, can be mixed in encapsulant 3 and use.In the case, constitute the wavelength conversion layer that encapsulant 3 absorbs near ultraviolet～blue light, emits green～near infrared light.In addition, owing to make solar module with the mode of encapsulant 3, therefore, can simplify manufacturing process according to Wavelength conversion film.
In addition, with regard to aforementioned wavelength conversion layer, be present in the path that sunlight incides solar battery cell 4 at least and get final product, any in being between the light receiving surface of watch crystal 2 and watch crystal 2 and the solar battery cell 4 at least gets final product.In addition, with regard to wavelength conversion layer, because can only absorb the light that is incident in solar battery cell gets final product, thereby be present at least and can get final product to the position of the light after conversion is supplied with in the sunlight incident section of solar battery cell 4, also can with the surface area area identical of solar module 1 on existence unevenly.
Therefore, as the structure of solar module, except structure shown in Figure 1, as shown in Figure 2, can form wavelength conversion layer 8 in the solar battery cell side of encapsulant 3.In the case, the distance of the light that gives off from material for transformation of wave length till the solar cell device shortens, and can suppress scattering of light.
In addition, as shown in Figure 3, under the situation that antireflection film 6 is set, can use in antireflection film 6 material for transformation of wave length 7 is mixing.In the case, owing to, therefore can simplify manufacturing process according to making Wavelength conversion film with the mode of antireflection film 6.In addition and since do not have 2 pairs of ultraviolet lights of watch crystal absorption, on the surface of watch crystal, form Wavelength conversion film, therefore, ultraviolet light can be carried out wavelength Conversion, become visible light～near infrared light.Just, this is because the light of ultraviolet light after the wavelength Conversion, is manyly absorbed by glass.
In addition, as shown in Figure 4, can between antireflection film 6 and watch crystal 2, form Wavelength conversion film 8.In the case, form Wavelength conversion film 8, therefore, ultraviolet wavelength can be converted to visible light～near-infrared owing to the absorption that does not have 2 pairs of ultraviolet lights of watch crystal, on the surface.
In addition, as shown in Figure 5, can on the basis of above-mentioned structure, use collector lens 9, carriage 10, substrate 11 etc., as the concentrating solar battery.Be converted to the low long wavelength's of energy light by the material for transformation of wave length short wavelength's that energy is high light, the energy of the surplus that the band gap of solar cell device is above reduces, therefore, even also can suppress the temperature rising of solar cell device as the concentrating solar battery.
As mentioned above, for for the solar cell of the structure that is provided with the material that comprises fluorophor in the path till light arrives solar cell, can consider to be mixed in the method for the material of watch crystal 2, encapsulant 3, in appropriate solvent, cooperate material for transformation of wave length and coat the method etc. at desirable position; If do not hinder the absorption of 4 pairs of sunlights of solar battery cell, do not damage the execution mode of the function of material for transformation of wave length 7, can be any method so.Wherein, material for transformation of wave length shown in Figure 17 is mixing in encapsulant 3 and the method for using can be simplified manufacture method, as the method excellence that material for transformation of wave length 7 is set.
Wavelength, particle diameter, interpolation concentration are held in exciting of material for transformation of wave length
Along with becoming black light from blue light, the quantum efficiency of solar cell is generally when the light wavelength of incident becomes the short wavelength and reduce.On the other hand, can use the quantum efficiency of fluorophor as material for transformation of wave length is about 0.7～0.9 material.Said herein quantum efficiency is from the emergent light of the fluorophor outgoing ratio with respect to the incident light that incides fluorophor, can measure by quantum efficiency test device.In addition, the luminous of fluorophor is isotropism, has not towards composition solar battery cell, that the rear is luminous.
Sunlight by the zone that the quantum efficiency of solar cell is low changes the high zone of quantum efficiency into through material for transformation of wave length, can improve the efficient of solar cell, and the difference of such quantum efficiency is the forward factor.On the other hand because the quantum efficiency of fluorophor is also less than 1, for example the quantum efficiency of fluorophor be 0.8 o'clock so the part of 1.0-0.8=0.2 be exactly the negative sense factor.In addition, from the light that fluorophor sends, the luminous composition in rear is approximately 13%, and this part also is the negative sense factor.Like this, will be combined because of the caused forward factor of wavelength and the negative sense factor of the excitation band of fluorophor, decide the efficient that whether can improve solar cell through the wavelength Conversion of fluorophor.Promptly, if the end length that excites of fluorophor is the wavelength shorter than desirable wavelength, just can not fully remedy the part of the quantum efficiency attenuating of solar cell, if fluorophor excite the end wavelength be the wavelength longer than desirable wavelength, because the quantum efficiency of fluorophor can not improve the efficient of solar cell less than 1.Here, excite the end wavelength to be meant the wavelength that the excitation intensity of long wavelength side in the excitation spectrum strengthens, be expressed as 10% wavelength of the peak intensity of excitation spectrum.For the fluorophor of locating to have excitation band more than the 300nm in the sunlight spectral intensity, the end wavelength that excites of the long wavelength side of this fluorophor is changed, in this case the generation power recruitment is estimated that estimation the results are shown in Fig. 6.
As seen, for the increase of the generation power that causes because of wavelength Conversion, quantum efficiency is 0.6～0.9 o'clock, and exciting the end wavelength is 350～670nm.For the increase of generation power, maximum when exciting the end wavelength to be 430-500nm.That is, if the quantum efficiency of material for transformation of wave length is 0.6～0.9, exciting the end wavelength by use so is the material for transformation of wave length of 430～500nm scope, but maximum limit improves the generation power of solar cell; If quantum efficiency is 0.7～0.9, exciting the end wavelength by use so is the material for transformation of wave length of 450～500nm scope, but maximum limit improves the generation power of solar cell.In addition, the quantum efficiency of material for transformation of wave length is under the situation more than 0.7, even further using and exciting the end wavelength is the material for transformation of wave length of 410～600nm, than the situation of the wavelength Conversion of in the past use Organometallic complexes (about quantum efficiency 0.6), also can improve the generation power of solar cell.
On the other hand, with regard to fluorophor, except because of the luminous loss that causes in above-mentioned rear, also have the loss that causes because of optical scattering, its degree is relevant with interpolation concentration with particle diameter.With regard to the relation of the particle diameter of material for transformation of wave length and light scattering intensity, if sun light wavelength is made as 500nm, light scattering intensity is so becoming maximum down in Mie scattering (Mie-Streuung) effect under particle diameter is the condition of 250nm of its half value.The relation of light scattering intensity and particle diameter is shown in Fig. 7.Particle diameter is during less than 250nm, and the scattering strength subject reduces in Rayleigh scattering (Rayleigh scattering) and the more little scattering strength of particle diameter; Subject was in the geometric optics scattering when particle diameter was greater than 250nm in addition, and the big more then light scattering intensity of particle diameter reduces more.The little then light scattering intensity of particle diameter reduces, but the luminous intensity of fluorophor reduces.In addition,, need to increase interpolation concentration so, the function of damage encapsulant if particle diameter is excessive.Though need consider these factors when the setting of particle diameter, the particle size range of 10nm～20 μ m is suitable.
Then, as the interpolation concentration of material for transformation of wave length in encapsulant, preferably: at the sunlight light incident side, there is 1 fluorophor particle in the photon of going into to inject till arriving solar battery cell at least, and sunlight shines the fluorophor in being mixed in encapsulant equably.
If add the concentration surplus so optical scattering increase, if add in addition concentration very few do not carry out wavelength Conversion so and former state by (plain logical
) light increase.Therefore, the interpolation concentration under the situation of the fluorophor of average grain diameter 2.3 μ m is 2 weight %.In addition, average grain diameter is that the interpolation concentration under the situation of fluorophor of 5.8 μ m is 5 weight %.In addition, be that adding concentration is 1 weight % under the situation of fluorophor of 1.2 μ m in average grain diameter.Therefore, the average grain diameter of fluorophor is under the situation of 1～5 μ m, and adding concentration is 1～5 weight %.That is to say, the fluorophor that particle diameter is big, the weight % of fluorophor becomes big so.But, be the result of calculation of the necessary amounts of fluorophor herein, there is optimal concentration in the front and back of this amount.
Therefore,, begin to manifest effect as the B (weight %) of optimal concentration scope from about 1/200 times of optimal concentration 2A/2.3 so, till about 10 times, can see effect if the average grain diameter of fluorophor is made as A (μ m).Therefore, the concentration of fluorophor is good in the scope of 0.004A≤B≤8.7A, if consider the obstruction (stopping) and the light scattering of light, so more preferably at the effect height of wavelength Conversion in about the 1/100 times scope that plays about 5 times of optimal concentration 2A/2.3.Therefore, the concentration of fluorophor is optimum in the scope of 0.008A≤B≤4.3A.
Selecting of material for transformation of wave length
As material for transformation of wave length, be preferably and the black light～blue light below the 500nm can be carried out that light is converted into green light～near infrared light of 500nm～1100nm and the material that is incident in solar battery cell.
Be preferably as follows material especially, described material locates to have excitation band more than the 300nm of sunlight spectral intensity, quantum efficiency is more than 0.7, excites the end wavelength to be in 410～600nm.The special material that most preferably excites the end wavelength to be in 430～500nm.Further, consider employed inorganic phosphor material in preferred various displays, lamp and the White LED etc. from the viewpoint of brightness life-span and moisture-proof.But be limited to the material that excitation band is distributed in black light～blue light.In the present invention, selected from the viewpoint, excitation band is present in black light～blue light and the high fluorescent material of light conversion efficiency is formed.Need to prove that fluorophor mostly is greatly to have very long use real result, established the fluorophor of reliability in fluorescent lamp, Braun tube (Braun tube), plasma display panel device etc.
Material for transformation of wave length 1
As the fluorophor of employed material for transformation of wave length among the present invention, fertile material is by M
xSi
yO
zThe compound of expression, and M is any one or more element that is selected from barium, strontium, calcium, magnesium, zinc, the scandium, the ratio of components of this compound is the scope of 2≤x≤5,1≤y≤3,4≤z≤12.In addition, this compound can list (Ba, Sr) as an example
2SiO
4, (Ba, Sr, Ca)
2SiO
4, Ba
2SiO
4, Sr
3SiO
5, (Sr, Ca, Ba)
3SiO
5, (Ba, Sr, Ca)
3MgSi
2O
8, Ca
3Si
2O
7, Ca
2ZnSi
2O
7, Ba
3Sc
2Si
3O
12, Ca
3Sc
2Si
3O
12In addition, the activator that adds as luminescence center is any one or more element that is selected from europium, manganese, the cerium.Below, provide some mensuration examples of these fluorophor.
As material for transformation of wave length, used (Ba, the Sr) of the average grain diameter 15 μ m that are added with europium
2SiO
4: the Eu fluorophor.The excitation spectrum and the luminescent spectrum of this fluorophor are shown in Fig. 8.Has the very wide excitation band from 300nm to 500nm.In addition, because the internal quantum of solar cell in the zone of 300nm～500nm is lower than the internal quantum at green 528nm place, therefore, can be by using (Ba, Sr)
2SiO
4: Eu fluorophor and carry out wavelength Conversion, improve the photoelectric conversion efficiency of solar cell.
In addition, as material for transformation of wave length, use the Sr of the average grain diameter 16 μ m that are added with europium
3SiO
5: the Eu fluorophor.The excitation spectrum and the luminescent spectrum of this fluorophor are shown in Fig. 9.Has the very wide excitation band from 300nm to 580nm.In addition, in luminescent spectrum, can see glow peak at 580nm.The quantum efficiency of wavelength Conversion is 73%.Because the internal quantum of solar cell in the zone of 300nm～580nm is lower than the internal quantum at orange 580nm place, therefore, can be by using Sr
3SiO
5: Eu fluorophor and carry out wavelength Conversion, improve the photoelectric conversion efficiency of solar cell.
In addition, as material for transformation of wave length, use the Ba of the average grain diameter 15 μ m that added cerium
3Sc
2Si
3O
12: the Ce fluorophor.The excitation spectrum and the luminescent spectrum of this fluorophor are shown in Figure 10.Has the very wide excitation band from 300nm to 500nm.In addition, in luminescent spectrum, can see glow peak at 510nm.The quantum efficiency of wavelength Conversion is 75%.Because the internal quantum of solar cell in the zone of 300nm～500nm is lower than the internal quantum at green 510nm place, therefore, can be by using Ba
3Sc
2Si
3O
12: Ce fluorophor and carry out wavelength Conversion, improve the photoelectric conversion efficiency of solar cell.
Then, as the fluorophor of employed material for transformation of wave length among the present invention, fertile material is by MAlSiN
3The compound of expression, and M is any one or more element in barium, strontium, calcium, the magnesium.In addition, this compound can list CaAlSiN as an example
3, (Sr, Ca) AlSiN
3In addition, the activator that adds as luminescence center is an europium.
As material for transformation of wave length, use the CaAlSiN of the average grain diameter 10 μ m that are added with europium
3: the Eu fluorophor.The excitation spectrum and the luminescent spectrum of this fluorophor are shown in Figure 11.Has the very wide excitation band from 300nm to 600nm.In addition, in luminescent spectrum, can see glow peak at 625nm.The quantum efficiency of wavelength Conversion is 79%.Because the internal quantum of the solar cell in the zone of 300nm～600nm is lower than the internal quantum at red 625nm place, therefore, can be by using CaAlSiN
3: Eu fluorophor and carry out wavelength Conversion, thus the photoelectric conversion efficiency of solar cell improved.
In addition, as material for transformation of wave length, use (Sr, Ca) AlSiN of the average grain diameter 10 μ m that are added with europium
3: the Eu fluorophor.The excitation spectrum and the luminescent spectrum of this fluorophor are shown in Figure 12.Has the very wide excitation band from 300nm to 600nm.In addition, in luminescent spectrum, can see glow peak at 610nm.The quantum efficiency of wavelength Conversion is 80%.Since be lower than internal quantum in the internal quantum of the solar cell in the zone of 300nm～600nm at red 610nm place, therefore, can be by use (Sr, Ca) AlSiN
3: Eu fluorophor and carry out wavelength Conversion, improve the photoelectric conversion efficiency of solar cell.
Material for transformation of wave length 2
In addition, as fluorophor, can use by MMgAl
10O
17The compound of expression.Herein, M is wantonly a kind or the multiple element that is selected among Ba, Sr, the Ca.
As material for transformation of wave length, use (Ba, Ca) MgAl of the average grain diameter 5 μ m that added europium and manganese
10O
17: Eu, Mn fluorophor.Then, (Ba, Ca) MgAl that the present invention is used
10O
17: the manufacture method of Eu, Mn green emitting fluorophor is recorded and narrated.Phosphor raw material uses BaCO
3, CaCO
3, MgCO
3, Al
2O
3, Eu
2O
3And MnCO
3In addition, use AlF
3As flux.The combined amount of each raw material is as follows..
BaCO
3…0.814g
CaCO
3…0.013g
MgCO
3…0.274g
Al
2O
3…2.549g
Eu
2O
3…0.132g
MnCO
3…0.201g
AlF
3…0.004g
With regard to BaCO
3, because Ca and Eu are that the minimizing of the amount of Ba partly is equivalent to the addition of Ca and Eu so, so that the amount of Ba+Ca+Eu is a fixed amount as the material of displacement Ba.In addition, Eu concentration is made as 15ml%, Mn concentration is made as 35mol%.Utilizing mortar raw material to be carried out raw material is filled in alumina crucible after dry type mixes, utilize tube furnace 1450 ℃, at N
2-H
2Reducing atmosphere (H
2Concentration 2%) carry out in burning till in 3 hours.Take out the burned material that is obtained, just obtained (Ba, Ca) MgAl of target
10O
17: Eu, Mn green emitting fluorophor ([Ca]=2.6mol%).
The excitation spectrum and the luminescent spectrum of this fluorophor are shown in Figure 13.From excitation spectrum, this has excitation band in zone widely at 300nm～460nm.Wide like this excitation band is because added Eu.In addition,, has luminous peak, the narrow and expression sharp-pointed (sharp) of half breadth luminous at 515nm from luminescent spectrum.This is luminous relevant with Mn, causes the energy transfer from Eu to Mn.Because solar cell generally is lower than the quantum efficiency at green 515nm place in the quantum efficiency in the zone of 300nm～460nm, therefore, can be by use (Ba, Ca) MgAl
10O
17: Eu, Mn fluorophor and carry out wavelength Conversion, improve the photoelectric conversion efficiency of solar cell.
With (Ba, Ca) MgAl
10O
17: the Ca concentration in Eu, the Mn fluorophor has been carried out the relative value of the glow peak intensity (515nm) that the 365nm of the sample that changes excites, and is shown in Figure 14.(Ba, Ca) MgAl
10O
17: the glow peak intensity of Eu, Mn fluorophor, by adding Ca, than BaMgAl
10O
17: Eu, Mn fluorophor have increased.By the Ca of the denier about interpolation 0.01mol%, and produced effect.
According to Figure 14, Ca concentration is in the scope less than 7mol%, and relative brightness surpasses 100.Therefore, Ca concentration is for being suitable greater than 0.01mol%, less than the scope of 9mol%, is suitable more preferably greater than 0.8mol%, scope below the 4mol%.By Ca concentration is made 1mol%, thereby glow peak intensity is than BaMgAl relatively
10O
17: Eu, Mn fluorophor have improved 6%.
In addition, make (Ba, Sr) MgAl
10O
17: Eu, Mn fluorophor, measured the glow peak intensity that 365nm excites.By the Sr of the denier about interpolation 0.01mol%, and tell on.According to Figure 14, in the scope of Sr concentration less than 9mol%, relative brightness surpasses 100.Therefore, Sr concentration is suitable greater than 0.01mol%, less than the scope of 9mol%, is suitable more preferably greater than 0.8mol%, scope below the 4mol%.
In Figure 14, further increase the amount of Sr, when 16mol%～18mol%, relative brightness surpasses 100.Therefore, even use the amount of the Sr of this scope also can improve effect.By Sr concentration is made 1mol%, thereby glow peak intensity is than BaMgAl relatively
10O
17: Eu, Mn fluorophor have improved 4%.
In addition, (Ba, Sr, Ca) MgAl is made in operation similarly
10O
17: Eu, Mn fluorophor, measured the glow peak intensity that 365nm excites.As shown in figure 14, the Ca concentration fixed is in 2.6moI%, changes the concentration of Sr and relative brightness is estimated.In the case, according to Figure 14, in the amount of the Sr zone lower than 8mol%, relative brightness surpasses 100, obtains effect.If further increase the concentration of Sr, be the scope of 14mol%～21mol% in the concentration of Sr, relative brightness surpasses 100.In addition, as shown in figure 14, by Ca concentration is made as 2.6mol%, Sr concentration is made as 1mol%, thereby glow peak intensity is than BaMgAl relatively
10O
17: Eu, Mn fluorophor can improve 7%.
So, by with (Ba, Sr) MgAl
10O
17: Eu, Mn, (Ba, Ca) MgAl
10O
17: Eu, Mn and (Ba, Sr, Ca) MgAl
10O
17: the fluorophor of Eu, Mn is arranged at solar battery panel as material for transformation of wave length, can improve the photoelectric conversion efficiency of solar cell.
For fluorophor used in the present invention, the excitation wavelength band is present in more than the 300nm as mentioned above, and excites the scope of holding wavelength to be present in 410～600nm, and quantum efficiency is 0.7 above height.Therefore, can improve the generating efficiency of solar cell.
In addition, the average grain diameter of employed fluorophor is 10nm～20 μ m among the present invention.Herein, the average grain diameter of fluorophor can followingly be stipulated.As the method for measurement of the average grain diameter of particle (fluorophor particle), have by particle size distribution device and carry out method for measuring and by method of electron microscope Direct observation etc.
If with situation about investigating by electron microscope is example, can followingly calculate average grain diameter so.The variable of the particle diameter of particle (..., 0.8～1.2 μ m, 1.3～1.7 μ m, 1.8～2.2 μ m ..., 6.8～7.2 μ m, 7.3～7.7 μ m, 7.8～8.2 μ m ... Deng) each interval, with class value (..., 1.0 μ m, 1.5 μ m, 2.0 μ m ..., 7.0 μ m, 7.5 μ m, 8.0 μ m ...) represent, it is made as Xi.And, if use f
1Expression is by the frequency of each variable of electron microscope observation, the following expression of mean value A so.
A＝∑X
if
i/∑f
i＝∑X
if
i/N
And, ∑ f
i=N.With regard to fluorophor of the present invention,, therefore, can obtain excellent effect as the used for solar batteries material for transformation of wave length because the excitation band wavelength is suitable for material for transformation of wave length.
The making 1 of solar module
Then, use aforementioned material for transformation of wave length and make solar module.A small amount of organic peroxide, crosslinking coagent and bonding improving agent of adding in transparent resin (EVA) is according to the Sr of the mixed average grain diameter 16 μ m of 0.1 weight %
3SiO
5: the Eu fluorophor, use the roller mill be heated to 80 ℃ carry out mixing after, use press and be sandwiched between 2 PETGs, what produce thickness 0.5mm is the encapsulant 3 of principal component with EVA.
Then, sealing material 3 put be chilled to room temperature, peel the PETG film off, together laminate surface glass 2, solar battery cell 4, backboard 5 as shown in Figure 1 are by the pre-crimping of the vacuum laminator that is set at 150 ℃., carry out crosslinked and bonding and produce solar module 1 sandwich of pre-crimping heating 30 minutes at 155 ℃ baking ovens.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and than the situation of not using material for transformation of wave length, the magnitude of current has increased by 5%.In addition, the brightness life-span of fluorophor has improved than the situation of using Organometallic complexes.
Then, use the Sr of average grain diameter 10nm～100nm
3SiO
5: the Eu fluorophor is similarly made with aforementioned solar module as material for transformation of wave length, has measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 5% than the situation magnitude of current that does not use material for transformation of wave length.Because the average grain diameter of fluorophor is the little of 10nm～100nm, so the brightness of fluorophor is low, but scattering is also low, thereby can increase by 5% the magnitude of current.
Then, use the Sr of average grain diameter 50nm～250nm
3SiO
5: the Eu fluorophor is similarly made with aforementioned solar module as material for transformation of wave length, has measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 6% than the situation magnitude of current that does not use material for transformation of wave length.Because the average grain diameter of fluorophor is that the change of 50nm～250nm is big, thereby the brightness of fluorophor rising, on the other hand as shown in Figure 7, it is big that scattering does not become, thereby can increase by 6% the magnitude of current.
Then, use the Sr of the average grain diameter 200nm～500nm of fluorophor
3SiO
5: the Eu fluorophor is similarly made with aforementioned solar module as material for transformation of wave length, has measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 4% than the situation magnitude of current that does not use material for transformation of wave length.Because average grain diameter further change as 200nm～500nm of fluorophor is big, thereby the brightness raising, but as shown in Figure 7, scattering also increases, and therefore the magnitude of current that increases is about 4%.
Then, use the Sr of average grain diameter 400nm～1 μ m
3SiO
5: the Eu fluorophor is similarly made with aforementioned solar module as material for transformation of wave length, has measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 4% than the situation magnitude of current that does not use material for transformation of wave length.Because average grain diameter further change as 400nm～1 μ m of fluorophor is big, thereby the brightness raising, but as shown in Figure 7, scattering also increases, and therefore the magnitude of current that increases is about 4%.
Then, use the Sr of average grain diameter 0.8 μ m～2 μ m
3SiO
5: the Eu fluorophor is similarly made with aforementioned solar module as material for transformation of wave length, has measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 5% than the situation magnitude of current that does not use material for transformation of wave length.Because average grain diameter further change as 0.8 μ m～2 μ m of fluorophor is big, thereby the brightness raising, in addition, as shown in Figure 7, scattering changes minimizing into, thereby can increase by 5% the magnitude of current.
Then, use the Sr of average grain diameter 1 μ m～5 μ m as material for transformation of wave length
3SiO
5: the Eu fluorophor, similarly make with aforementioned solar module, measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 5% than the situation magnitude of current that does not use material for transformation of wave length.Because average grain diameter further change as 1 μ m～5 μ m of fluorophor is big, thereby the brightness raising, in addition, as shown in Figure 7, scattering changes minimizing into, thereby can increase by 5% the magnitude of current.
Then, use the Sr of average grain diameter 3 μ m～20 μ m
3SiO
5: the Eu fluorophor is similarly made with aforementioned solar module as material for transformation of wave length, has measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 5% than the situation magnitude of current that does not use material for transformation of wave length.The further change as 3 μ m～20 μ m of the average grain diameter of fluorophor is big, thereby the brightness raising, and in addition, as shown in Figure 7, scattering changes minimizing into, thereby can increase by 5% the magnitude of current.
Then, use average grain diameter 15 μ m (Ba, Sr)
2SiO
4: the Eu fluorophor is similarly made with aforementioned solar module as material for transformation of wave length, has measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 2.5% than the situation magnitude of current that does not use material for transformation of wave length.In addition, the brightness life-span of fluorophor has improved than the situation of using Organometallic complexes.
Then, use the CaAlSiN of average grain diameter 10 μ m
3: the Eu fluorophor is similarly made with aforementioned solar module as material for transformation of wave length, has measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 4% than the situation magnitude of current that does not use material for transformation of wave length.In addition, the brightness life-span of fluorophor has improved than the situation of using Organometallic complexes.
The making 2 of solar module
Then, the example of having made solar module to using the aforementioned material for transformation of wave length different with above-mentioned 1 describes.A small amount of organic peroxide, crosslinking coagent and bonding improving agent of adding in transparent resin (EVA) is according to (Ba, Ca, Sr) MgAl of the mixed average grain diameter 6 μ m of 0.1 weight %
10O
17: Eu, Mn fluorophor, use the roller mill be heated to 80 ℃ and after mixing, use press and be sandwiched between 2 PETGs, what produce thickness 0.5mm is the encapsulant 3 of principal component with EVA.In addition, aforementioned phosphors is formed, and can use a kind or the multiple composition of mixing use.
Then, sealing material 3 put be chilled to room temperature, peel the PETG film off, together laminate surface glass 2, solar battery cell 4, backboard 5 carry out pre-crimping by the vacuum laminator that is set at 150 ℃ as shown in Figure 1., carry out crosslinked and bonding and produce solar battery panel 1 sandwich of pre-crimping heating 30 minutes with 155 ℃ baking ovens.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar battery panel increases, and has increased by 5% than the situation magnitude of current that does not use material for transformation of wave length.In addition, the brightness life-span of fluorophor has improved than the situation of using Organometallic complexes.
Then, use (Ba, Ca, Sr) MgAl of average grain diameter 10nm～100nm
10O
17: Eu, Mn fluorophor are similarly made with aforementioned solar module as material for transformation of wave length, have measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 5% than the situation magnitude of current that does not use material for transformation of wave length.The average grain diameter of fluorophor is the little of 10nmA～100nm, so the brightness of fluorophor is low, but scattering is also low, thereby can increase by 5% the magnitude of current.
Then, use (Ba, Ca, Sr) MgAl of average grain diameter 50nm～250nm
10O
17: Eu, Mn fluorophor are similarly made with aforementioned solar module as material for transformation of wave length, have measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 6% than the situation magnitude of current that does not use material for transformation of wave length.
Then, use (Ba, Ca, Sr) MgAl of average grain diameter 200nm～500nm
10O
17: Eu, Mn fluorophor are similarly made with aforementioned solar module as material for transformation of wave length, have measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 4% than the situation magnitude of current that does not use material for transformation of wave length.The further change as 200nm～500nm of the average grain diameter of fluorophor is big, thereby the brightness raising, but as shown in Figure 7, scattering also increases, and therefore the magnitude of current that increases is about 4%.
Then, use (Ba, Ca, Sr) MgAl of average grain diameter 400nm～1 μ m
10O
17: Eu, Mn fluorophor are similarly made with aforementioned solar module as material for transformation of wave length, have measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 4% than the situation magnitude of current that does not use material for transformation of wave length.The further change as 400nm～1 μ m of the average grain diameter of fluorophor is big, thereby the brightness raising, but as shown in Figure 7, scattering also increases, and therefore the magnitude of current that increases is about 4%.
Then, use (Ba, Ca, Sr) MgAl of average grain diameter 0.8 μ m～2 μ m
10O
17: Eu, Mn fluorophor are similarly made with aforementioned solar module as material for transformation of wave length, have measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 5% than the situation magnitude of current that does not use material for transformation of wave length.The further change as 0.8 μ m～2 μ m of the average grain diameter of fluorophor is big, thereby the brightness raising, and in addition, as shown in Figure 7, scattering changes minimizing into, thereby can increase by 5% the magnitude of current.
Then, use (Ba, Ca, Sr) MgAl of average grain diameter 1 μ m～5 μ m
10O
17: Eu, Mn fluorophor are similarly made with aforementioned solar module as material for transformation of wave length, have measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 5% than the situation magnitude of current that does not use material for transformation of wave length.The further change as 1 μ m～5 μ m of the average grain diameter of fluorophor is big, thereby the brightness raising, and in addition, as shown in Figure 7, scattering changes minimizing into, thereby can increase by 5% the magnitude of current.
Then, use (Ba, Ca, Sr) MgAl of average grain diameter 3 μ m～20 μ m
10O
17: Eu, Mn fluorophor are similarly made with aforementioned solar module as material for transformation of wave length, have measured its magnitude of current.In the present invention, owing to use the suitable fluorophor of excitation band as material for transformation of wave length, and use the high material for transformation of wave length of light conversion efficiency, therefore, the magnitude of current of solar module increases, and has increased by 5% than the situation magnitude of current that does not use material for transformation of wave length.The further change as 3 μ m～20 μ m of the average grain diameter of fluorophor is big, thereby the brightness raising, and in addition, as shown in Figure 7, scattering changes minimizing into, thereby can increase by 5% the magnitude of current.
Utilize possibility on the industry
The present invention can be used in the solar modules such as polycrystalline silicon film solar cell, filming compound semiconductor solar cell, non-crystal silicon solar cell.
Claims (33)
1. encapsulant plate, the encapsulant plate that its encapsulant of serving as reasons the protection solar cell constitutes is characterized in that,
In described encapsulant, be mixed with fluorophor,
The fertile material of described fluorophor comprises (Ba, Sr)
2SiO
4, (Ba, Sr, Ca)
2SiO
4, Ba
2SiO
4, Sr
3SiO
5, (Sr, Ca, Ba)
3SiO
5, (Ba, Sr, Ca)
3MgSi
2O
8, Ca
3Si
2O
7, Ca
2ZnSi
2O
7, Ba
3Sc
2Si
3O
12, Ca
3Sc
2Si
3O
12In any.
2. encapsulant plate according to claim 1 is characterized in that,
The activator of described fluorophor is any one or more element among Eu, Mn, the Ce.
3. encapsulant plate, the encapsulant plate that its encapsulant of serving as reasons the protection solar cell constitutes is characterized in that,
In described encapsulant, be mixed with fluorophor,
The fertile material of described fluorophor is by MAlSiN
3Expression, M is any one or more element among Ba, Sr, Ca, the Mg.
4. encapsulant plate according to claim 3 is characterized in that,
The fertile material of described fluorophor comprises CaAlSiN
3, (Sr, Ca) AlSiN
3In any.
5. encapsulant plate according to claim 3 is characterized in that,
The activator of described fluorophor is Eu.
6. encapsulant plate, the encapsulant plate that its encapsulant of serving as reasons the protection solar cell constitutes is characterized in that,
In described encapsulant, be mixed with fluorophor,
The fertile material of described fluorophor is by MMgAl
10O
17: the compound that Eu, Mn represent, M are wantonly a kind or the multiple element that is selected among Ba, Sr, the Ca.
7. encapsulant plate according to claim 6 is characterized in that,
Described encapsulant is mixed with any one or more additive in organic peroxide, crosslinking coagent and the bonding improving agent.
8. encapsulant plate, the encapsulant plate that its encapsulant of serving as reasons the protection solar cell constitutes is characterized in that,
In described encapsulant, be mixed with fluorophor,
The fertile material of described fluorophor (Ba, the Ca) MgAl that serves as reasons
10O
17: the compound that Eu, Mn represent, Ca concentration is greater than 0.01mol%, less than 7mol%.
9. encapsulant plate according to claim 8 is characterized in that,
The fertile material of described fluorophor (Ba, the Ca) MgAl that serves as reasons
10O
17: the compound that Eu, Mn represent, Ca concentration is greater than 0.8mol%, below the 4mol%.
10. encapsulant plate, the encapsulant plate that its encapsulant of serving as reasons the protection solar cell constitutes is characterized in that,
In described encapsulant, be mixed with fluorophor,
The fertile material of described fluorophor (Ba, Ca, the Sr) MgAl that serves as reasons
10O
17: the compound that Eu, Mn represent, Ca concentration are made as under the situation of 2.6mol%, and Sr concentration is the scope of 0.01mol%～9mol% or the scope of 14mol%～21mol%.
11. an encapsulant plate, the encapsulant plate that its encapsulant of serving as reasons the protection solar cell constitutes is characterized in that,
In described encapsulant, be mixed with fluorophor,
The fertile material of described fluorophor (Ba, the Sr) MgAl that serves as reasons
10O
17: the compound that Eu, Mn represent, Sr concentration are the scope of 0.01mol%～9mol% or the scope of 16mol%～18mol%.
12. encapsulant plate according to claim 11 is characterized in that,
The fertile material of described fluorophor (Ba, the Sr) MgAl that serves as reasons
10O
17: the compound that Eu, Mn represent, Sr concentration are the scope of 0.8mol%～4mol%.
13. encapsulant plate according to claim 12 is characterized in that,
The Mn concentration of described fluorophor is 35mol%.
14. according to each described encapsulant plate in the claim 1～13, it is characterized in that,
The average grain diameter of described fluorophor is more than the 10nm, below the 20 μ m.
15. according to each described encapsulant plate in the claim 1～13, it is characterized in that,
The average grain diameter of described fluorophor is made as A (μ m), when the addition in encapsulant is made as B (weight %), 0.004A≤B≤8.7A.
16. according to each described encapsulant plate in the claim 1～13, it is characterized in that,
The average grain diameter of described fluorophor is made as A (μ m), when the addition in encapsulant is made as B (weight %), 0.008A≤B≤4.3A.
17. according to each described encapsulant plate in the claim 1～13, it is characterized in that,
Described encapsulant is a principal component with vinyl-vinyl acetate copolymer (EVA).
18. a solar module, it is the solar module with transparency carrier, encapsulant, solar battery cell and backboard, it is characterized in that,
Have fluorophor in the path till light arrives solar battery cell,
The fertile material of described fluorophor comprises (Ba, Sr)
2SiO
4, (Ba, Sr, Ca)
2SiO
4, Ba
2SiO
4, Sr
3SiO
5, (Sr, Ca, Ba)
3SiO
5, (Ba, Sr, Ca)
3MgSi
2O
8, Ca
3Si
2O
7, Ca
2ZnSi
2O
7, Ba
3Sc
2Si
3O
12, Ca
3Sc
2Si
3O
12In any.
19. solar module according to claim 18 is characterized in that,
The activator of described fluorophor is any one or more element among Eu, Mn, the Ce.
20. a solar module, the solar module that its encapsulant of serving as reasons the protection solar cell constitutes is characterized in that,
Have fluorophor in the path till light arrives solar battery cell,
The fertile material of described fluorophor is by MAlSiN
3Expression, M is any one or more element among Ba, Sr, Ca, the Mg.
21. solar module according to claim 20 is characterized in that,
The fertile material of described fluorophor comprises CaAlSiN
3, (Sr, Ca) AlSiN
3In any.
22. solar module according to claim 20 is characterized in that,
The activator of described fluorophor is Eu.
23. a solar module, it is the solar module with transparency carrier, encapsulant, solar battery cell and backboard, it is characterized in that,
Have fluorophor in the path till light arrives solar battery cell,
The fertile material of described fluorophor is by MMgAl
10O
17: the compound that Eu, Mn represent, M are wantonly a kind or the multiple element that is selected among Ba, Sr, the Ca.
24. a solar module, it is the solar module with transparency carrier, encapsulant, solar battery cell and backboard, it is characterized in that,
Have fluorophor in the path till light arrives solar battery cell,
The fertile material of described fluorophor (Ba, the Ca) MgAl that serves as reasons
10O
17: the compound that Eu, Mn represent, Ca concentration is greater than 0.01mol%, less than 7mol%.
25. solar module according to claim 24 is characterized in that,
The fertile material of described fluorophor (Ba, the Ca) MgAl that serves as reasons
10O
17: the compound that Eu, Mn represent, Ca concentration is greater than 0.8mol%, below the 4mol%.
26. a solar module, it is the solar module with transparency carrier, encapsulant, solar battery cell and backboard, it is characterized in that,
Have fluorophor in the path till light arrives solar battery cell,
The fertile material of described fluorophor (Ba, Ca, the Sr) MgAl that serves as reasons
10O
17: the compound that Eu, Mn represent, Ca concentration are made as under the situation of 2.6mol%, and Sr concentration is the scope of 0.01mol%～9mol% or the scope of 14mol%-21mol%.
27. a solar module, it is the solar module with transparency carrier, encapsulant, solar battery cell and backboard, it is characterized in that,
Have fluorophor in the path till light arrives solar battery cell,
The fertile material of described fluorophor (Ba, the Sr) MgAl that serves as reasons
10O
17: the compound that Eu, Mn represent, Sr concentration are the scope of 0.01mol%～9mol% or the scope of 16mol%～18mol%.
28. solar module according to claim 27 is characterized in that,
The fertile material of described fluorophor (Ba, the Sr) MgAl that serves as reasons
10O
17The compound of expression, Sr concentration is the scope of 0.8mol%～4mol%.
29. solar module according to claim 28 is characterized in that,
The Mn concentration of described fluorophor is 35mol%.
30. according to the described solar module of claim 18～29, it is characterized in that,
The average grain diameter of described fluorophor is more than the 10nm, below the 20 μ m.
31. according to each described solar module in the claim 18～29, it is characterized in that,
The average grain diameter of described fluorophor is made as A (μ m), when the addition in encapsulant is made as B (weight %), 0.004A≤B≤8.7A.
32. according to each described solar module in the claim 18～29, it is characterized in that,
The average grain diameter of described fluorophor is made as A (μ m), when the addition in encapsulant is made as B (weight %), 0.008A≤B≤4.3A.
33. according to each described solar module in the claim 18～29, it is characterized in that,
Described encapsulant is a principal component with vinyl-vinyl acetate copolymer (EVA).
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| JP2010046489A JP2011181814A (en) | 2010-03-03 | 2010-03-03 | Sealing material sheet having wavelength conversion material and solar cell using the same |
| JP2010-046489 | 2010-03-03 | ||
| JP2010-046480 | 2010-03-03 | ||
| JP2010046480A JP2011181813A (en) | 2010-03-03 | 2010-03-03 | Sealing material sheet having wavelength conversion material and solar cell using the same |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104583363A (en) * | 2012-08-23 | 2015-04-29 | 皇家飞利浦有限公司 | Stabilized wavelength converting element |
| CN104583363B (en) * | 2012-08-23 | 2018-09-21 | 飞利浦灯具控股公司 | Stabilized wavelength conversion element |
| CN103709678A (en) * | 2013-11-29 | 2014-04-09 | 佛山安亿纳米材料有限公司 | Light conversion film and preparation method thereof |
| CN103709678B (en) * | 2013-11-29 | 2016-01-13 | 佛山安亿纳米材料有限公司 | Light-converting film and preparation method thereof |
| CN103740364A (en) * | 2013-12-06 | 2014-04-23 | 厦门通士达新材料有限公司 | Yellow orange-orange red orthosilicate fluorescent material, and preparation method thereof |
| CN104795460A (en) * | 2015-04-24 | 2015-07-22 | 赛维Ldk太阳能高科技（南昌）有限公司 | Photovoltaic packaging structure and solar module with same |
| CN105449038A (en) * | 2015-12-18 | 2016-03-30 | 东南大学 | Method for improving conversion efficiency of solar cell module |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI456027B (en) | 2014-10-11 |
| TW201139615A (en) | 2011-11-16 |
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Application publication date: 20110921 |