JP5753445B2 - 光電変換装置 - Google Patents
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- H10F10/10—Individual photovoltaic cells, e.g. solar cells having potential barriers
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- H10F10/10—Individual photovoltaic cells, e.g. solar cells having potential barriers
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- H10F10/17—Photovoltaic cells having only PIN junction potential barriers
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- H10F77/164—Polycrystalline semiconductors
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- H10F77/10—Semiconductor bodies
- H10F77/16—Material structures, e.g. crystalline structures, film structures or crystal plane orientations
- H10F77/162—Non-monocrystalline materials, e.g. semiconductor particles embedded in insulating materials
- H10F77/166—Amorphous semiconductors
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- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
- H10K30/50—Photovoltaic [PV] devices
- H10K30/57—Photovoltaic [PV] devices comprising multiple junctions, e.g. tandem PV cells
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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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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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- Y02E10/544—Solar cells from Group III-V materials
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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
- 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
- Y02E10/545—Microcrystalline silicon PV cells
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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
- 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
- Y02E10/546—Polycrystalline silicon PV cells
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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
- 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
- Y02E10/547—Monocrystalline silicon PV cells
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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
- 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
- Y02E10/548—Amorphous silicon PV cells
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Description
本形態では、本発明の一態様である光電変換装置の構成について説明する。
本形態では、上記実施の形態1で説明した光電変換装置100の特性について説明する。また、適宜、上述の特許文献1に示された3端子構造の太陽電池と比較して説明する。
本形態では、上記実施の形態で説明した図1の光電変換装置100と異なる構成について説明する。具体的には、第1のセル120の第2のセル140と対向する側の面に、濃度の異なる不純物半導体領域を設けたエミッタ構造の例を説明する。なお、図1と同じ構成については同じ符号を付し、詳細な説明は省略する。
上記実施の形態に示す光電変換装置は、さまざまな電子機器に用いることができる。なお、上記実施の形態に示す光電変換装置は、複数個を接続して集積化させて用いることもできる。本実施の形態では、一例として、電子書籍の電源として用いる例を説明する。
12 上部セル
14 下部セル
18 上部電極
24 絶縁膜
26 負極
28 正極
100 光電変換装置
105 絶縁層
107 第3の電極
109 透明導電膜
120 第1のセル
140 第2のセル
200 光電変換装置
230 絶縁層
101a 第1の電極
101b 第2の電極
121n 第1の不純物半導体領域
123p 第2の不純物半導体領域
125n 第3の不純物半導体層
127p 第4の不純物半導体層
141n 第5の不純物半導体層
143i 第6の半導体層
145p 第7の不純物半導体層
226p 第4の高濃度不純物半導体領域
227p 第4の低濃度不純物半導体領域
228p 第4の不純物半導体層
9000 電子書籍
9630 筐体
9631 表示部
9632 操作キー
9633 光電変換装置
9634 充放電制御回路
9635 バッテリー
9636 DCDCコンバータ
9637 DCDCコンバータ
Claims (7)
- 第1の光電変換層を含む第1のセルと、
前記第1のセルの一方の面と接し、且つ第2の光電変換層を含む第2のセルと、
前記第1のセルの他方の面側に設けられた、第1の電極及び第2の電極と、
前記第2のセルの、前記第1のセルと接する面と反対側の面に設けられた第3の電極と、を有し、
前記第2の光電変換層は、前記第1の光電変換層に含まれる第1の材料よりもバンドギャップが大きい第2の材料を含み、
前記第1のセル及び前記第2のセルが接する接触部は、pn接合が形成されており、
前記第1のセルは、第1のn型半導体層及び第1のp型半導体層を含む第2のn型半導体層と、第2のp型半導体層と、を有し、
前記第1のn型半導体層及び前記第1のp型半導体層は、前記第2のn型半導体層の一方の面側に設けられており、
前記第1のn型半導体層は、前記第1の電極と接する領域を有し、
前記第1のp型半導体層は、前記第2の電極と接する領域を有し、
前記第2のn型半導体層の他方の面は、前記第2のp型半導体層の一方の面と接し、
前記第2のp型半導体層の他方の面は、前記第2のセルと接し、
前記第1のn型半導体層と前記第1のp型半導体層とは、互いに分離されて設けられ、
前記第1の電極と前記第2の電極とは、互いに電気的に分離されており、
前記第2のセルは、前記第3の電極と電気的に接続されていることを特徴とする光電変換装置。 - 第1の光電変換層を含む第1のセルと、
第2の光電変換層を含む第2のセルと、
前記第1のセル及び前記第2のセルの間に設けられた、開口を有する絶縁層と、
前記第1のセルを挟んで前記開口を有する絶縁層と対向する前記第1のセルの一方の面側に設けられた、第1の電極及び第2の電極と、
前記第2のセルを挟んで前記開口を有する絶縁層と対向する前記第2のセルの一方の面側に設けられた、第3の電極と、を有し、
前記第2の光電変換層は、前記第1の光電変換層に含まれる第1の材料よりもバンドギャップが大きい第2の材料を含み、
前記第1のセルは、前記開口を介して前記第2のセルと接する領域を有し、
前記第1のセル及び前記第2のセルが接する接触部は、pn接合が形成されており、
前記第1のセルは、第1のn型半導体層及び第1のp型半導体層を含む第2のn型半導体層と、第2のp型半導体層と、を有し、
前記第1のn型半導体層及び前記第1のp型半導体層は、前記第2のn型半導体層の一方の面側に設けられており、
前記第1のn型半導体層は、前記第1の電極と接する領域を有し、
前記第1のp型半導体層は、前記第2の電極と接する領域を有し、
前記第2のn型半導体層の他方の面は、前記第2のp型半導体層の一方の面と接し、
前記第2のp型半導体層の他方の面は、前記第2のセルと接し、
前記第1のn型半導体層と前記第1のp型半導体層とは、互いに分離されて設けられ、
前記第1の電極と前記第2の電極とは、互いに電気的に分離されており、
前記第2のセルは、前記第3の電極と電気的に接続されていることを特徴とする光電変換装置。 - 請求項2において、
前記第2のp型半導体層は、第1の領域と、前記第1の領域の不純物濃度よりも高い不純物濃度を有する第2の領域と、を有することを特徴とする光電変換装置。 - 請求項3において、
前記第2の領域は、前記第2のセルと接するように設けられていることを特徴とする光電変換装置。 - 請求項1乃至4のいずれか一において、
前記第1のn型半導体層の不純物濃度は、前記第2のn型半導体層の不純物濃度よりも高いことを特徴とする光電変換装置。 - 請求項1乃至5のいずれか一において、
前記第1の材料は、単結晶シリコン又は多結晶シリコンであり、
前記第2の材料は、アモルファスシリコンであることを特徴とする光電変換装置。 - 請求項1乃至6のいずれか一において、
前記第2のセル及び前記第3の電極の間に設けられた透明導電膜を有することを特徴とする光電変換装置。
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JP2011132820A JP5753445B2 (ja) | 2010-06-18 | 2011-06-15 | 光電変換装置 |
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JP2010138889 | 2010-06-18 | ||
JP2010138889 | 2010-06-18 | ||
JP2011132820A JP5753445B2 (ja) | 2010-06-18 | 2011-06-15 | 光電変換装置 |
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JP2012023351A JP2012023351A (ja) | 2012-02-02 |
JP2012023351A5 JP2012023351A5 (ja) | 2014-06-26 |
JP5753445B2 true JP5753445B2 (ja) | 2015-07-22 |
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US10685983B2 (en) | 2016-11-11 | 2020-06-16 | Semiconductor Energy Laboratory Co., Ltd. | Transistor, semiconductor device, and electronic device |
WO2020004475A1 (ja) * | 2018-06-29 | 2020-01-02 | 国立研究開発法人産業技術総合研究所 | 多接合光電変換素子及び多接合太陽電池 |
JP6818208B1 (ja) * | 2020-08-01 | 2021-01-20 | 良昭 萩原 | 光電変換半導体装置 |
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JP5792523B2 (ja) | 2010-06-18 | 2015-10-14 | 株式会社半導体エネルギー研究所 | 光電変換装置の作製方法 |
US9076909B2 (en) | 2010-06-18 | 2015-07-07 | Semiconductor Energy Laboratory Co., Ltd. | Photoelectric conversion device and method for manufacturing the same |
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2011
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