JP4340246B2 - 薄膜太陽電池およびその製造方法 - Google Patents
薄膜太陽電池およびその製造方法 Download PDFInfo
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- 239000010409 thin film Substances 0.000 title claims description 90
- 238000004519 manufacturing process Methods 0.000 title claims description 22
- 239000010408 film Substances 0.000 claims description 101
- 238000000926 separation method Methods 0.000 claims description 93
- 238000006243 chemical reaction Methods 0.000 claims description 92
- 239000000758 substrate Substances 0.000 claims description 57
- 238000000034 method Methods 0.000 claims description 21
- 229910021424 microcrystalline silicon Inorganic materials 0.000 claims description 12
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 4
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 31
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 31
- 239000011521 glass Substances 0.000 description 21
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 10
- 230000007423 decrease Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 5
- 239000011787 zinc oxide Substances 0.000 description 5
- 229910006404 SnO 2 Inorganic materials 0.000 description 4
- 230000001678 irradiating effect Effects 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000001755 magnetron sputter deposition Methods 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/0445—PV modules or arrays of single PV cells including thin film solar cells, e.g. single thin film a-Si, CIS or CdTe solar cells
- H01L31/046—PV modules composed of a plurality of thin film solar cells deposited on the same substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/0445—PV modules or arrays of single PV cells including thin film solar cells, e.g. single thin film a-Si, CIS or CdTe solar cells
- H01L31/046—PV modules composed of a plurality of thin film solar cells deposited on the same substrate
- H01L31/0463—PV modules composed of a plurality of thin film solar cells deposited on the same substrate characterised by special patterning methods to connect the PV cells in a module, e.g. laser cutting of the conductive or active layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/0445—PV modules or arrays of single PV cells including thin film solar cells, e.g. single thin film a-Si, CIS or CdTe solar cells
- H01L31/046—PV modules composed of a plurality of thin film solar cells deposited on the same substrate
- H01L31/0468—PV modules composed of a plurality of thin film solar cells deposited on the same substrate comprising specific means for obtaining partial light transmission through the module, e.g. partially transparent thin film solar modules for windows
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Electromagnetism (AREA)
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- Microelectronics & Electronic Packaging (AREA)
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- Photovoltaic Devices (AREA)
Description
幅560mm×長さ925mmのSnO2からなる透明導電膜付のガラス基板(旭硝子Uタイプ)を用意し、YAG基本波レーザ光をガラス基板側から照射することによって、透明導電膜の一部をレーザスクライブによりガラス基板の幅方向に短冊状に除去して透明導電膜を分離する第2分離溝を形成した。第2分離溝の幅は300μmであり、第2分離溝は150mmピッチで5本設けられた。また、第2分離溝の形成方向と直交する方向(ガラス基板の長さ方向)にもYAG基本波レーザ光を用いたレーザスクライブにより透明導電膜の一部を短冊状に除去して透明導電膜を分離する第1分離溝を形成した。第1分離溝の幅は100μmであり、第1分離溝は150mmピッチで3本設けられた。
幅560mm×長さ925mmのSnO2からなる透明導電膜付のガラス基板(旭硝子Uタイプ)を用意し、YAG基本波レーザ光をガラス基板側から照射することによって、透明導電膜の一部をレーザスクライブによりガラス基板の長さ方向に短冊状に除去して透明導電膜を分離する第1分離溝を形成した。この第1分離溝の幅は80μmであり、第1分離溝は150mmピッチで4本設けられた。
Claims (10)
- 絶縁透光性基板上に設置された透明導電膜と、
前記絶縁透光性基板上において互いに直交し前記透明導電膜を複数に分離している、第1分離溝と、第2分離溝と、
前記絶縁透光性基板上において互いに直交している、前記第1分離溝に平行な少なくとも1本の第1開口溝と、前記第2分離溝に平行な少なくとも2本の第2開口溝と、を含み、
前記第1開口溝を挟んで隣接する位置および前記第2開口溝を挟んで隣接する位置のそれぞれに前記絶縁透光性基板上に形成された、光電変換層と、裏面電極と、を含む太陽電池セルが設置されており、
前記第1開口溝を挟んで隣接している一対の太陽電池セルにおいては、一方の太陽電池セルの光電変換層と他方の太陽電池セルの裏面電極とがそれぞれ透明導電膜と接触することによって電気的に接続され、
前記第2開口溝を挟んで隣接している一対の太陽電池セルにおいては、一方の太陽電池セルの光電変換層に接触している透明導電膜と他方の太陽電池セルの光電変換層に接触している透明導電膜とが前記第2分離溝により分離されておらず電気的に接続されているものと、一方の太陽電池セルの光電変換層に接触している透明導電膜と他方の太陽電池セルの光電変換層に接触している透明導電膜とが前記第2分離溝により分離されており電気的に絶縁されているものとが混在しており、
前記透明導電膜を分離している前記第2分離溝が所定の間隔で配置されていることを特徴とする、薄膜太陽電池。 - 前記光電変換層が微結晶シリコンからなる層を含むことを特徴とする、請求項1に記載の薄膜太陽電池。
- 前記光電変換層がアモルファスシリコンからなる層と微結晶シリコンからなる層とのタンデム構造からなることを特徴とする、請求項1または2に記載の薄膜太陽電池。
- 前記第1分離溝と前記第1開口溝とはその設置位置が互いに重複しておらず、前記第2分離溝と前記第2開口溝とはその設置位置が互いに重複していることを特徴とする、請求項1から3のいずれかに記載の薄膜太陽電池。
- 前記第2分離溝の幅と、前記第2開口溝の幅と、が異なることを特徴とする、請求項1から4のいずれかに記載の薄膜太陽電池。
- 請求項1から5のいずれかに記載の薄膜太陽電池を製造する方法であって、前記絶縁透光性基板上に前記透明導電膜を形成する工程と、前記透明導電膜の一部を互いに直交する複数の短冊状に除去して前記第1分離溝および前記第2分離溝を形成する工程と、前記透明導電膜上、前記第1分離溝上および前記第2分離溝上に光電変換層と裏面電極とをこの順序で形成する工程と、前記光電変換層の一部および前記裏面電極の一部を互いに直交する複数の短冊状に除去することによって前記第1開口溝および前記第2開口溝を形成する工程と、を含む、薄膜太陽電池の製造方法。
- 前記第2分離溝の幅が前記第2開口溝の幅よりも広いことを特徴とする、請求項6に記載の薄膜太陽電池の製造方法。
- 請求項1から5のいずれかに記載の薄膜太陽電池を製造する方法であって、前記絶縁透光性基板上に前記透明導電膜を形成する工程と、前記透明導電膜の一部を短冊状に除去して前記第1分離溝を形成する工程と、前記透明導電膜上および前記第1分離溝上に光電変換層と裏面電極とをこの順序で形成する工程と、前記光電変換層の一部および前記裏面電極の一部を互いに直交する複数の短冊状に除去することによって前記第1開口溝および前記第2開口溝を形成する工程と、前記第2開口溝おいて露出した前記透明導電膜の表面の少なくとも一部を短冊状に除去することによって前記第2分離溝を形成する工程と、を含む、薄膜太陽電池の製造方法。
- 前記第2分離溝の幅が前記第2開口溝の幅よりも狭いことを特徴とする、請求項8に記載の薄膜太陽電池の製造方法。
- 前記透明導電膜の除去はYAG基本波レーザ光を用いたレーザスクライブによって行なわれ、前記光電変換層および前記裏面電極の除去はYAG第2高調波レーザ光を用いたレーザスクライブによって行なわれることを特徴とする、請求項6から9のいずれかに記載の薄膜太陽電池の製造方法。
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JP2005062816A JP4340246B2 (ja) | 2005-03-07 | 2005-03-07 | 薄膜太陽電池およびその製造方法 |
US11/367,428 US7750233B2 (en) | 2005-03-07 | 2006-03-06 | Thin film solar cell and manufacturing method thereof |
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JP2006245507A JP2006245507A (ja) | 2006-09-14 |
JP4340246B2 true JP4340246B2 (ja) | 2009-10-07 |
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