JP2016066741A - 太陽電池 - Google Patents
太陽電池 Download PDFInfo
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- JP2016066741A JP2016066741A JP2014195579A JP2014195579A JP2016066741A JP 2016066741 A JP2016066741 A JP 2016066741A JP 2014195579 A JP2014195579 A JP 2014195579A JP 2014195579 A JP2014195579 A JP 2014195579A JP 2016066741 A JP2016066741 A JP 2016066741A
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 5
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- 230000000694 effects Effects 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
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- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
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- 238000002161 passivation Methods 0.000 description 2
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
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- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 239000011737 fluorine Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- 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
- 238000007740 vapor deposition Methods 0.000 description 1
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- H01L31/042—PV modules or arrays of single PV cells
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- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
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- H01L31/0745—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 characterised by potential barriers the potential barriers being only of the PN heterojunction type comprising a AIVBIV heterojunction, e.g. Si/Ge, SiGe/Si or Si/SiC solar cells
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Abstract
Description
本実施形態における太陽電池70の構成について、図1〜図6を参照しながら詳細に説明する。
一導電型を有する半導体基板10と、半導体基板10の主面(第2主面10b)上に設けられ、半導体基板10と同じ導電型を有する第1導電型層12nと、主面(第2主面10b)上に設けられ、半導体基板10と異なる導電型を有する第2導電型層13pと、を含み、主面(第2主面10b)上の第1方向(y方向)に第1導電型層12nおよび第2導電型層13pが交互に配置される光電変換部と、
第1導電型層12nおよび第2導電型層13pの上に設けられる電極層19と、を備え、
光電変換部は、第1方向(y方向)に交差する第2方向(x方向)に並ぶ複数のサブセル71〜74を有するとともに、隣接するサブセルの境界に設けられる分離領域W5xを有し、
電極層19は、
複数のサブセルのうち一端のサブセル71に含まれる第1導電型層12n上に設けられる第1電極14と、
複数のサブセルのうち他端のサブセル74に含まれる第2導電型層13p上に設けられる第2電極15と、
隣接する二つのサブセルにまたがって設けられ、隣接する二つのサブセルのうち、一方のサブセルに含まれる第1導電型層12nと、他方のサブセルに含まれる第2導電型層13pとを接続するサブ電極20と、を有し、
第1電極14が設けられるサブセル71は、第2電極15が設けられるサブセル74よりも主面(第2主面10b)の面積が大きい。
第1電極14が設けられるサブセル71は、中間サブセル72,73よりも主面(第2主面10b)の面積が大きくてもよい。
接続部20cは、分離領域W5xにおいて第1方向(y方向)および第2方向(x方向)と交差する方向A,Bに延びてもよい。
第2導電型層13pは、p型の不純物を含んでもよい。
本実施形態における太陽電池70の構成について、図25および図26を参照しながら詳細に説明する。第1の実施形態では、サブ電極20の接続部20cがx方向に対して斜めの方向A、Bに延びることとしたが、第2の実施形態では、接続部20cがx方向に延びる点で相違する。以下、第1の実施形態との相違点を中心に述べる。
図27は、変形例1における太陽電池70を示す平面図である。上述の実施形態では、太陽電池70を4つのサブセル71〜74に分割することとしたが、本変形例では2つのサブセル71、72に分割される。
上述の実施形態および変形例では、半導体基板10の導電型をn型とし、第1導電型領域をn型とし、第2導電型領域をp型とする場合を示した。変形例においては、半導体基板10の導電型をp型とし、第1導電型領域をp型とし、第2導電型領域をp型としてもよい。この場合においても、半導体基板10と同じ導電型の第1導電型領域に接続される第1電極14を有する取り出しサブセルの面積を相対的に大きくすることで、上述の実施形態と同様の効果を得ることができる。
上述の実施形態では、境界30a〜30cに溝を設けることとした。変形例においては、境界30a〜30cにおいて光電変換部を貫通する溝を設けないこととしてもよい。また、溝を設けた上で、隣接するサブセル同士を接着させる機能を有する充填材を溝に設けてもよい。充填材は、隣接するサブセル間を絶縁できる材料で構成されることが望ましく、エチレン酢酸ビニル共重合体(EVA)や、ポリビニルブチラール(PVB)、ポリイミド等の樹脂材料を用いればよい。溝を設けない構成または充填材を設ける構成により、サブセル間を分割する境界30a〜30cの強度を高めることができ、太陽電池70全体としてより強度の高い構造とすることができる。
Claims (5)
- 一導電型を有する半導体基板と、前記半導体基板の主面上に設けられ、前記半導体基板と同じ導電型を有する第1導電型層と、前記主面上に設けられ、前記半導体基板と異なる導電型を有する第2導電型層と、を含み、前記主面上の第1方向に前記第1導電型層および前記第2導電型層が交互に配置される光電変換部と、
前記第1導電型層および前記第2導電型層の上に設けられる電極層と、を備え、
前記光電変換部は、前記第1方向に交差する第2方向に並ぶ複数のサブセルを有するとともに、隣接するサブセルの境界に設けられる分離領域を有し、
前記電極層は、
前記複数のサブセルのうち一端のサブセルに含まれる前記第1導電型層上に設けられる第1電極と、
前記複数のサブセルのうち他端のサブセルに含まれる前記第2導電型層上に設けられる第2電極と、
隣接する二つのサブセルにまたがって設けられ、前記隣接する二つのサブセルのうち、一方のサブセルに含まれる前記第1導電型層と、他方のサブセルに含まれる前記第2導電型層とを接続するサブ電極と、を有し、
前記第1電極が設けられるサブセルは、前記第2電極が設けられるサブセルよりも前記主面の面積が大きい太陽電池。 - 前記光電変換部は、前記複数のサブセルの一つとして、前記第1電極が設けられるサブセルおよび前記第2電極が設けられるサブセルの間に位置する中間サブセルを有し、
前記第1電極が設けられるサブセルは、前記中間サブセルよりも前記主面の面積が大きい請求項1に記載の太陽電池。 - 前記サブ電極は、前記一方のサブセルに含まれる前記第1導電型層上に設けられる第1サブ電極部と、前記他方のサブセルに含まれる前記第2導電型層上に設けられる第2サブ電極部と、前記第1サブ電極部および前記第2サブ電極部の間に設けられる接続部と、を有し、
前記接続部は、前記分離領域において前記第1方向および前記第2方向と交差する方向に延びる請求項1または2に記載の太陽電池。 - 前記分離領域には、少なくとも前記半導体基板を貫通する溝が設けられる請求項1から3のいずれか一項に記載の太陽電池。
- 前記半導体基板および前記第1導電型層は、n型の不純物を含み、
前記第2導電型層は、p型の不純物を含む、請求項1から4のいずれか一項に記載の太陽電池。
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JP2014195579A JP6337352B2 (ja) | 2014-09-25 | 2014-09-25 | 太陽電池 |
DE102015218164.2A DE102015218164A1 (de) | 2014-09-25 | 2015-09-22 | Solarzelle |
US14/864,443 US20160093758A1 (en) | 2014-09-25 | 2015-09-24 | Solar cell |
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JP2020014013A (ja) * | 2019-09-27 | 2020-01-23 | 信越化学工業株式会社 | 太陽電池、太陽電池モジュール、及び太陽光発電システム |
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US9502601B1 (en) | 2016-04-01 | 2016-11-22 | Sunpower Corporation | Metallization of solar cells with differentiated P-type and N-type region architectures |
USD810676S1 (en) * | 2016-08-12 | 2018-02-20 | Solaria Corporation | Solar cell article |
USD815028S1 (en) * | 2016-08-12 | 2018-04-10 | Solaria Corporation | Solar cell article |
USD810675S1 (en) * | 2016-08-12 | 2018-02-20 | Solaria Corporation | Solar cell article |
USD817264S1 (en) * | 2016-08-12 | 2018-05-08 | Solaria Corporation | Solar cell article |
USD815029S1 (en) * | 2016-08-12 | 2018-04-10 | Solaria Corporation | Solar cell article |
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JP2002507835A (ja) * | 1998-03-13 | 2002-03-12 | ケラー・シュテフェン | 太陽電池装置 |
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DE69132358T2 (de) * | 1990-05-07 | 2000-12-28 | Canon Kk | Solarzelle |
CN101874304B (zh) * | 2007-11-22 | 2012-07-18 | 夏普株式会社 | 元件间布线构件、光电转换元件及使用其的光电转换元件连接体和光电转换组件 |
JP5485060B2 (ja) * | 2010-07-28 | 2014-05-07 | 三洋電機株式会社 | 太陽電池の製造方法 |
CN102833593B (zh) * | 2012-07-17 | 2015-12-16 | 晨星软件研发(深圳)有限公司 | 一种智能电视应用的授权方法、***及智能电视 |
JP5894103B2 (ja) | 2013-03-29 | 2016-03-23 | 株式会社三共 | 遊技機 |
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US5164019A (en) * | 1991-07-31 | 1992-11-17 | Sunpower Corporation | Monolithic series-connected solar cells having improved cell isolation and method of making same |
JP2002507835A (ja) * | 1998-03-13 | 2002-03-12 | ケラー・シュテフェン | 太陽電池装置 |
JP2010283406A (ja) * | 2010-09-28 | 2010-12-16 | Sanyo Electric Co Ltd | 太陽電池 |
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JP2020014013A (ja) * | 2019-09-27 | 2020-01-23 | 信越化学工業株式会社 | 太陽電池、太陽電池モジュール、及び太陽光発電システム |
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US20160093758A1 (en) | 2016-03-31 |
JP6337352B2 (ja) | 2018-06-06 |
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