CN202157142U - Quartz crucible - Google Patents
Quartz crucible Download PDFInfo
- Publication number
- CN202157142U CN202157142U CN2011202503187U CN201120250318U CN202157142U CN 202157142 U CN202157142 U CN 202157142U CN 2011202503187 U CN2011202503187 U CN 2011202503187U CN 201120250318 U CN201120250318 U CN 201120250318U CN 202157142 U CN202157142 U CN 202157142U
- Authority
- CN
- China
- Prior art keywords
- crucible
- quartz crucible
- coating
- quartz
- barium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
The utility model provides a quartz crucible, comprising a substrate crucible, and a barium hydroxide coating that is coated on the internal wall and the upper surface of the substrate crucible. The quartz crucible is characterized in that a barium hydroxide coating is coated on the working surface of the substrate crucible. In the use of the crucible, the barium hydroxide coating is finally converted into a barium silicate coating. Owning to the existence of the barium silicate, a layer of dense and slim square quartz crystals is formed on the internal wall and the upper hole of the quartz crucible respectively; and the slim square quartz crystals are difficult to desquamate due to seepage of the silicon molten liquid. Therefore, the barium hydroxide coating is finally converted into the barium silicate coating which plays a protective role on the quartz crucible, and the single crystal silicon can be prevented from reacting with the quarts crucible during the high-temperature drawing; furthermore, the strength of the quartz crucible can be reinforced, and the high-temperature softening phenomenon can be reduced.
Description
Technical field
The utility model relates to photovoltaic module producing apparatus field, particularly a kind of quartz crucible.
Background technology
Along with adding of process of industrialization, conventional energy resourcess such as coal, oil and natural gas are exhausted day by day, and a series of environmental issues are also followed appearance.Therefore, traditional fossil energy has been difficult to satisfy the demand of modern industry, and the environmental problem of its generation has also constituted threat to people's survival environment.Sun power is developed as a kind of reproducible green energy resource gradually in the world fast.Increasingly mature along with solar energy generation technology, solar cell is obtained widespread use at numerous areas such as industry, agricultural and space flight.
Solar cell is the device that luminous energy is changed into electric energy through photovoltaic effect or Photochemical effects.At present, according to the difference of material therefor, solar cell can be divided into: silicon solar cell, compound film solar cell and polymer multi-layer modified electrode solar cell, organic solar batteries and nano-crystalline solar battery.Wherein, the silicon solar cell development is the most ripe, in application, occupies an leading position.Crystal-silicon solar cell is divided into single crystal silicon solar cell and polycrystalline silicon solar cell again.With respect to polycrystalline silicon solar cell, monocrystalline silicon battery has high conversion rate, so single crystal silicon solar cell is used comparatively extensive.
Vertical pulling method is the main working method of silicon single crystal, the quartz crucible subsidiary material that in the crystal pulling process, are absolutely necessary.Quartz crucible at high temperature has the crystal that trend becomes silicon-dioxide, and this process is called crystallization.Crystallization usually occurs in the top layer of quartz crucible, and according to Chinese silica glass industry standard regulation, the semiconductor industry silica glass is incubated 6 hours down at 1400 ℃ ± 5 ℃, and the crystallization of the mean thickness of crystallization layer within 100 μ m is to belong to normal.But; Serious crystallization is very big to pulling influence; Might destroy the original coating of crucible inwall during inner wall of quartz crucible generation crystallization; This will cause bubble layer and molten silicon below the coating to react, and cause part particulate state silicon oxide to get in the molten silicon, and feasible crystalline structure of growing morphs and can't normally grow brilliant.In addition, crystallization is with the original thickness of attenuate quartz crucible, and the intensity that has reduced crucible causes the distortion of quartz crucible easily.
In recent years, along with the increase of charging capacity, the also corresponding prolongation of crystal pulling time, the crystallization of existing quartz crucible is also serious all the more, causes when crystal pulling quartz crucible can occur can't reaching existing time requirement work-ing life thus and the situation that causes leaking material takes place; And if the subsidiary extremely small impurity in quartz crucible surface, also will cause monocrystalline to interrupt rib in process of growth, influence yield rate.
The utility model content
The technical problem that the utility model solves is to provide a kind of long service life, the high quartz crucible of long brilliant yield.
In view of this, this use is novel to provide a kind of quartz crucible, comprising:
The matrix crucible;
Be overlying on the hydrated barta coating on said matrix crucible inwall and surface suitable for reading.
Preferably, said matrix crucible is 18 inches quartz crucibles, 20 inches quartz crucibles or 22 inches quartz crucibles.
Preferably, the thickness of said hydrated barta coating is 10 μ m～50 μ m.
Preferably, the thickness of said matrix crucible is 6mm～13mm.
The utility model provides a kind of quartz crucible, comprising: the matrix crucible; Be overlying on the hydrated barta coating on said matrix crucible inwall and surface suitable for reading.With respect to existing quartz crucible, the quartz crucible that the utility model provides is on the workplace of matrix crucible, to cover one deck hydrated barta coating.The hydrated barta coating can form the barium carbonate coating with the carbon dioxide in air reaction, and when this kind quartz crucible was heated on single crystal growing furnace, barium carbonate can be decomposed to form barium oxide, and barium oxide can form barium silicate with the quartz crucible reaction again.Because the existence of barium silicate is arranged, make the inwall and suitable for reading of quartz crucible all can form the fine and close small cristobalite crystallization of one deck, this small cristobalite crystallization is difficult to infiltrated and peel off by melted silicon.Therefore, the hydrated barta coating finally can be converted into the barium silicate coating, and the barium carbonate coating can play a protective role to quartz crucible, prevents to react with quartz crucible in the silicon single crystal high temperature pulling process; In addition, it can also increase the quartzy intensity of crucible just, reduces the hot mastication phenomenon.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the quartz crucible that Fig. 1 provides for the utility model.
Embodiment
In order further to understand the utility model; Below in conjunction with embodiment the utility model preferred embodiment is described; Describe just to further specifying the feature and advantage of the utility model but should be appreciated that these, rather than to the restriction of the utility model claim.
The utility model embodiment discloses a kind of quartz crucible, is illustrated in figure 1 as the structural representation of the quartz crucible that the utility model provides, and the quartz crucible that the utility model provides comprises:
Matrix crucible 1;
Be overlying on the hydrated barta coating 2 on said matrix crucible 1 inwall and surface suitable for reading.
The quartz crucible that the utility model provides is the workplace at matrix crucible 1, and promptly the inwall of existing quartz crucible and suitable for reading going up cover one deck hydrated barta coating 2.Hydrated barta coating 2 can form the barium carbonate coating with the carbon dioxide in air reaction, and when this kind quartz crucible was heated on single crystal growing furnace, barium carbonate can be decomposed to form barium oxide, and barium oxide can form barium silicate with the quartz crucible reaction again.Because the existence of barium silicate is arranged, make the inwall and suitable for reading of quartz crucible all can form the fine and close small cristobalite crystallization of one deck, this small cristobalite crystallization is difficult to infiltrated and peel off by melted silicon.Therefore, hydrated barta coating 2 finally can be converted into the barium silicate coating, and the barium carbonate coating can play a protective role to quartz crucible, prevents that silicon single crystal high temperature draw to be equipped with in the process to react with quartz crucible; In addition, it can also increase the quartzy intensity of crucible just, reduces the hot mastication phenomenon.
Select hydrated barta to be as the reason of coating: with respect to barium silicate or barium carbonate, hydrated barta has higher solubleness in water, and therefore above-mentioned quartz crucible can adopt spraying method to prepare coating.Adopt its quantity for spray of spraying coating process to be easy to control, can control the amount of hydrated barta on the quartz crucible, and then realize control the hydrated barta coat-thickness through the control quantity for spray.
The hydrated barta coating can play a protective role to quartz crucible, and its protection effect is relevant with the thickness of hydrated barta coating.If the hydrated barta coating is if thickness is thin excessively, the final barium silicate layer that forms is also thin excessively, is not enough to realize the provide protection to quartz crucible; If the hydrated barta coat-thickness is blocked up, the then final barium silicate coating that forms is also blocked up, and it is prone to peel off in the quartz crucible surface, causes monocrystalline to interrupt rib in process of growth, influences yield rate.For this reason, preferably to control the thickness of hydrated barta coating be 10 μ m～50 μ m to the utility model.
Matrix crucible in the above-mentioned quartz crucible preferably adopts 18 inches quartz crucibles, 20 inches quartz crucibles or 22 inches quartz crucibles, more preferably adopts 20 inches quartz crucibles.The thickness of matrix crucible is preferably 6mm～13mm.
The quartz crucible that the utility model provides is preferably according to following method preparation:
A), the configuration barium hydroxide solution, the weight ratio of hydrated barta and water is 1 in the said barium hydroxide solution: (46～52);
B), quartz crucible is heated to more than 200 ℃, said barium hydroxide solution evenly is sprayed at the inwall of said quartz crucible and suitable for reading, spraying said inner wall of quartz crucible in back and surface suitable for reading form the hydrated barta coating.
Above-mentioned preparation method adopts spraying method that barium hydroxide solution is sprayed to the inwall of quartz crucible of heat and suitable for reading; Because the quartz crucible temperature is higher; Therefore barium hydroxide solution touches the water evaporation in the solution behind the crucible surface; Hydrated barta is stayed crucible inwall and surface suitable for reading, forms the hydrated barta coating.
Before spraying, need earlier the quartz crucible that cleans up to be heated to more than 200 ℃, preferably be heated to 290 ℃～310 ℃; As early as possible the sodium hydroxide solution that configures is sprayed at the inwall of quartz crucible and suitable for reading then, because this moment, the quartz crucible temperature was higher, the moisture that therefore is sprayed in the sodium hydroxide solution on quartz crucible surface can evaporate, and forms the hydrated barta coating thus.
Consider that the quartz crucible crucible is in the taking-up process; And temperature all can reduce in spraying process, so the utility model controls the Heating temperature and the spray time of quartz crucible, to guarantee that quartz crucible all can keep its temperature more than 200 ℃ in spraying process; Avoid the quartz crucible temperature low excessively; Making barium hydroxide solution contact back moisture with quartz crucible can not evaporate fully, the sagging phenomenon occurs, causes hydrated barta coat-thickness skewness thus.Step b preferably carries out according to following mode thus:
B1), after being placed baking oven internal heating to 290 ℃～310 ℃, takes out by quartz crucible;
B2), said barium hydroxide solution evenly is sprayed at the inwall of said quartz crucible and suitable for reading, spraying said inner wall of quartz crucible in back and last interruption-forming hydrated barta coating in 1.5～3min.
In order to obtain the hydrated barta coating that thickness is 10 μ m～50 μ m, the density of preferred control hydrated barta coating is 0.65 * 10 among the above-mentioned preparation method
-4G/cm
2～0.96 * 10
-4G/cm
2For this reason, more preferably controlling the middle hydrated barta of barium hydroxide solution and the weight ratio of water is 1: (46～52).If hydrated barta content is low excessively in the barium hydroxide solution, then be prone to cause the situation of above-mentioned cover light; As if the hydrated barta too high levels, then be difficult to control the homogeneity and the consumption of quantity for spray in the spraying process, cause coating inhomogeneous or too thick thus, be prone to take place the situation that part is peeled off during use.The quantity for spray of barium hydroxide solution is preferably (18.5～21.5) g/20 inch quartz crucible.
The arrangement step of barium hydroxide solution, promptly step a preferably carries out under protection of inert gas, and this is because hydrated barta is prone to and the carbon dioxide in air formation barium carbonate sediment that reacts, and influences the homogeneity that sprays in the spraying process.In like manner, the spraying coating process of barium hydroxide solution, promptly step b also carries out in rare gas element.
Can prepare the quartz crucible that the surface is covered with the hydrated barta coating according to the method described above; The hydrated barta that forms can form barium carbonate with the carbon dioxide in air reaction; When this kind quartz crucible is heated on single crystal growing furnace; Barium carbonate can be decomposed to form barium oxide, and barium oxide can form barium silicate with the quartz crucible reaction again.Therefore, final quartz crucible surface forms the fine and close small barium silicate cristobalite crystallizing layer of one deck, and quartz crucible is played a protective role, and prevents to react with quartz crucible in the silicon single crystal high temperature pulling process, improves the work-ing life and the long brilliant yield of quartz crucible; In addition, it can also increase the quartzy intensity of crucible just, reduces the hot mastication phenomenon.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (4)
1. a quartz crucible is characterized in that, comprising:
Matrix crucible (1);
Be overlying on the hydrated barta coating (2) on said matrix crucible (1) inwall and surface suitable for reading.
2. quartz crucible according to claim 1 is characterized in that, said matrix crucible (1) is 18 inches quartz crucibles, 20 inches quartz crucibles or 22 inches quartz crucibles.
3. quartz crucible according to claim 1 is characterized in that, the thickness of said hydrated barta coating (2) is 10 μ m～50 μ m.
4. quartz crucible according to claim 1 is characterized in that, the thickness of said matrix crucible (1) is 6mm～13mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202503187U CN202157142U (en) | 2011-07-15 | 2011-07-15 | Quartz crucible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202503187U CN202157142U (en) | 2011-07-15 | 2011-07-15 | Quartz crucible |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157142U true CN202157142U (en) | 2012-03-07 |
Family
ID=45764784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202503187U Expired - Fee Related CN202157142U (en) | 2011-07-15 | 2011-07-15 | Quartz crucible |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157142U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629281A (en) * | 2019-10-11 | 2019-12-31 | 内蒙古中环协鑫光伏材料有限公司 | Preparation method of novel quartz crucible |
| CN115142121A (en) * | 2021-03-31 | 2022-10-04 | 晶科能源股份有限公司 | Method for improving crystal forming rate of re-cast monocrystalline silicon and monocrystalline silicon preparation device |
| CN115369475A (en) * | 2021-05-21 | 2022-11-22 | 内蒙古中环协鑫光伏材料有限公司 | Czochralski single crystal initial re-casting process |
| CN115724598A (en) * | 2021-08-31 | 2023-03-03 | 内蒙古中环协鑫光伏材料有限公司 | Quartz crucible pretreatment method for improving first grain crystallization rate |
-
2011
- 2011-07-15 CN CN2011202503187U patent/CN202157142U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110629281A (en) * | 2019-10-11 | 2019-12-31 | 内蒙古中环协鑫光伏材料有限公司 | Preparation method of novel quartz crucible |
| CN115142121A (en) * | 2021-03-31 | 2022-10-04 | 晶科能源股份有限公司 | Method for improving crystal forming rate of re-cast monocrystalline silicon and monocrystalline silicon preparation device |
| CN115142121B (en) * | 2021-03-31 | 2023-06-20 | 晶科能源股份有限公司 | Method for improving crystal yield of re-cast monocrystalline silicon and monocrystalline silicon preparation device |
| CN115369475A (en) * | 2021-05-21 | 2022-11-22 | 内蒙古中环协鑫光伏材料有限公司 | Czochralski single crystal initial re-casting process |
| CN115369475B (en) * | 2021-05-21 | 2024-05-28 | 内蒙古中环晶体材料有限公司 | Initial re-casting process of Czochralski single crystal |
| CN115724598A (en) * | 2021-08-31 | 2023-03-03 | 内蒙古中环协鑫光伏材料有限公司 | Quartz crucible pretreatment method for improving first grain crystallization rate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102260902B (en) | Method for preparing quartz crucible coating | |
| CN102347398B (en) | The sodium sputtering doping method of extensive CIGS base film photovoltaic material | |
| CN202157142U (en) | Quartz crucible | |
| CN103014833B (en) | The preparation method of silicon ingot | |
| CN103390674B (en) | CZTS flexible solar cell and preparation method thereof | |
| US20120132281A1 (en) | Thin-film solar cell and manufacturing method thereof | |
| CN101805923A (en) | Gallium doped solar silicon wafer and production process thereof | |
| CN102534547A (en) | Preparation process for gradient antireflection silicon nitride thin film of crystalline silicon solar cell | |
| CN101582466A (en) | Polycrystalline silicon film solar cell | |
| CN104836519A (en) | Integrated intelligent glass window based on perovskite solar cell power supply and method for manufacturing same | |
| CN102024870A (en) | System and method for manufacturing semiconductor thin film solar cell | |
| CN103354252B (en) | The PN junction of CZTS solar cell and the preparation method of CZTS solar cell device | |
| JP6254345B2 (en) | Glass substrate for solar cell | |
| CN103137720B (en) | A kind of photovoltaic film material of doped with rare-earth elements | |
| JP2011258954A (en) | Use of glass for application to photovoltaic power generation | |
| CN103183478A (en) | Silicon nitride crucible coating and preparation method thereof | |
| CN104701394B (en) | Cu2ZnSn (S1-xSex) 4 thin film with preferred orientation effect | |
| CN104617183B (en) | A kind of CIGS base thin film solar battery and preparation method thereof | |
| CN204237890U (en) | A kind of crystalline silicon directional solidification growth equipment | |
| CN102437237A (en) | Chalcopyrite type thin-film solar cell and manufacturing method thereof | |
| JP2014024717A (en) | GLASS SUBSTRATE FOR Cu-In-Ga-Se SOLAR CELL, SOLAR CELL USING THE SAME, AND MANUFACTURING METHOD THEREOF | |
| CN202786496U (en) | Composite heat shielding device applied to single crystal furnace | |
| CN102024878A (en) | Preparation method of copper-indium-gallium-sulphur film for solar battery | |
| CN104962869A (en) | Intelligent energy-saving thin film doped with nano-composite embedded structure and preparation method thereof | |
| CN202187081U (en) | Thermal field of single crystal furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20150715 |
|
| EXPY | Termination of patent right or utility model |