JP2012129518A - 光電変換装置、及びその作製方法 - Google Patents
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- H01L31/06—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
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Abstract
【解決手段】結晶性シリコン基板に第1の溝部と、それと交差する第2の溝部を形成し、結晶性シリコン基板の表面及び該溝部にi型の第1のシリコン半導体層、一導電型を有する第2のシリコン半導体層、透光性導電膜を順次形成し、第1の溝部に導電性樹脂を注入し、毛細管現象によって第2の溝部に導電性樹脂を充填してグリッド電極を形成する。
【選択図】図1
Description
102a 第1のシリコン半導体層
102b 第3のシリコン半導体層
104a 第2のシリコン半導体層
104b 第4のシリコン半導体層
106 透光性導電膜
108 グリッド電極
108a バスバー電極
108b フィンガー電極
110 裏面電極
210 第1の溝部
220 第2の溝部
300 壁部
400 金属ワイヤー
Claims (12)
- 結晶性シリコン基板の一方の面に第1の溝部と、前記第1の溝部と交わる第2の溝部を形成し、
前記第1の溝部及び前記第2の溝部、並びに前記結晶性シリコン基板の一方の面に第1のシリコン半導体層を形成し、
前記第1のシリコン半導体層上に一導電型を有する第2のシリコン半導体層を形成し、
前記結晶性シリコン基板の他方の面に第3のシリコン半導体層を形成し、
前記第3のシリコン半導体層上に一導電型とは逆の導電型を有する第4のシリコン半導体層を形成し、
前記第2のシリコン半導体層上に透光性導電膜を形成し、
前記第4のシリコン半導体層上に裏面電極を形成し、
前記第1のシリコン半導体層、前記第2のシリコン半導体層、及び前記透光性導電膜が積層された前記第1の溝部及び前記第2の溝部に導電性樹脂を注入して焼成し、埋め込み型のグリッド電極を形成する工程において、
前記第2の溝部への前記導電性樹脂の注入は、前記第1の溝部に導電性樹脂を注入し、毛細管現象を利用して前記第1の溝部から前記第2の溝部に注入することを特徴とする光電変換装置の作製方法。 - 結晶性シリコン基板の一方の面に第1の溝部と、前記第1の溝部と交わる第2の溝部を形成し、
前記第1の溝部及び前記第2の溝部、並びに前記結晶性シリコン基板の一方の面に第1のシリコン半導体層を形成し、
前記第1のシリコン半導体層上に一導電型を有する第2のシリコン半導体層を形成し、
前記結晶性シリコン基板の他方の面に第3のシリコン半導体層を形成し、
前記第3のシリコン半導体層上に一導電型とは逆の導電型を有する第4のシリコン半導体層を形成し、
前記第4のシリコン半導体層上に裏面電極を形成し、
前記第1のシリコン半導体層、及び前記第2のシリコン半導体層が積層された前記第1の溝部及び前記第2の溝部に導電性樹脂を注入し、焼成して埋め込み型のグリッド電極を形成し、
前記第2のシリコン半導体層及び前記グリッド電極上に透光性導電膜を形成する工程において、
前記第2の溝部への前記導電性樹脂の注入は、前記第1の溝部に導電性樹脂を注入し、毛細管現象を利用して前記第1の溝部から前記第2の溝部に注入することを特徴とする光電変換装置の作製方法。 - 請求項1または2において、前記第2の溝部は前記第1の溝部よりも幅が狭く形成されることを特徴とする光電変換装置の作製方法。
- 請求項1乃至3のいずれか一項において、前記導電性樹脂の粘度は、100mPa・s以下であることを特徴とする光電変換装置の作製方法。
- 請求項1乃至4のいずれか一項において、前記第1の溝部及び前記第2の溝部への導電性樹脂の注入及び焼成は、複数回行うことを特徴とする光電変換装置の作製方法。
- 請求項1乃至5のいずれか一項において、前記第1及び前記第3のシリコン半導体層の導電型はi型、前記第2のシリコン半導体層の導電型はp型またはn型であることを特徴とする光電変換装置の作製方法。
- 結晶性シリコン基板の一方の面に設けられた第1の溝部と、
前記第1の溝部と交わる第2の溝部と、
前記第1の溝部及び前記第2の溝部、並びに前記結晶性シリコン基板の一方の面に設けられた第1のシリコン半導体層と、
前記第1のシリコン半導体層上に設けられた一導電型を有する第2のシリコン半導体層と、
前記結晶性シリコン基板の他方の面に設けられた第3のシリコン半導体層と、
前記第3のシリコン半導体層上に設けられた一導電型とは逆の導電型を有する第4のシリコン半導体層と、
前記第2のシリコン半導体層上に設けられた透光性導電膜と、
前記第4のシリコン半導体層上に設けられた裏面電極と、
前記透光性導電膜と接し、前記第1の溝部及び前記第2の溝部に形成された導電性樹脂からなる埋め込み型のグリッド電極を有することを特徴とする光電変換装置。 - 結晶性シリコン基板の一方の面に設けられた第1の溝部と、
前記第1の溝部と交わる第2の溝部と、
前記第1の溝部及び前記第2の溝部、並びに前記結晶性シリコン基板の一方の面に設けられた第1のシリコン半導体層と、
前記第1のシリコン半導体層上に設けられた一導電型を有する第2のシリコン半導体層と、
前記結晶性シリコン基板の他方の面に設けられた第3のシリコン半導体層と、
前記第3のシリコン半導体層上に設けられた一導電型とは逆の導電型を有する第4のシリコン半導体層と、
前記第4のシリコン半導体層上に設けられた裏面電極と、
前記第2のシリコン半導体層と接し、前記第1の溝部及び前記第2の溝部に形成された導電性樹脂からなる埋め込み型のグリッド電極と、
前記第2のシリコン半導体層及び前記グリッド電極上に設けられた透光性導電膜を有することを特徴とする光電変換装置。 - 請求項7または8において、前記第2の溝部は前記第1の溝部よりも幅が狭く形成されることを特徴とする光電変換装置。
- 請求項7乃至9のいずれか一項において、前記第1及び前記第3のシリコン半導体層の導電型はi型、前記第2のシリコン半導体層の導電型はp型またはn型であることを特徴とする光電変換装置。
- 請求項7乃至10のいずれか一項において、前記第1の溝部の端部近傍、及び前記第2の溝部の端部近傍に該溝部の一部を充填する壁部が形成されていることを特徴とする光電変換装置。
- 請求項7乃至11のいずれか一項において、前記第1の溝部及び第2の溝部、または該溝部のどちらか一方に金属ワイヤーが埋め込まれていることを特徴とする光電変換装置。
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JP2014135319A (ja) * | 2013-01-08 | 2014-07-24 | Mitsubishi Electric Corp | 太陽電池及び太陽電池モジュール |
KR101875741B1 (ko) * | 2017-01-06 | 2018-07-06 | 엘지전자 주식회사 | 태양 전지 및 이의 제조 방법 |
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KR101400206B1 (ko) * | 2013-11-20 | 2014-05-28 | 주식회사 이건창호 | 단열용 태양전지 구조물의 제조방법 |
CN104091858B (zh) * | 2014-07-28 | 2017-11-07 | 六安市大宇高分子材料有限公司 | 一种选择性发射极太阳能电池的制造方法 |
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EP4295417A4 (en) * | 2022-01-27 | 2024-05-22 | Triumph Science & Tech Group Co Ltd | METHOD FOR PRODUCING CROSS-SHAPED CONDUCTOR PATHS OF A THIN-FILM SOLAR MODULE |
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JP6101376B2 (ja) | 2017-03-22 |
US9337361B2 (en) | 2016-05-10 |
US20120132271A1 (en) | 2012-05-31 |
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