JP2016111097A - 光電変換装置 - Google Patents
光電変換装置 Download PDFInfo
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- JP2016111097A JP2016111097A JP2014245262A JP2014245262A JP2016111097A JP 2016111097 A JP2016111097 A JP 2016111097A JP 2014245262 A JP2014245262 A JP 2014245262A JP 2014245262 A JP2014245262 A JP 2014245262A JP 2016111097 A JP2016111097 A JP 2016111097A
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Abstract
Description
図1は、本発明の第1実施形態に係る光電変換装置の平面図を示す模式図である。光電変換装置1は、シリコン基板101、n型非晶質半導体層102n、p型非晶質半導体層102p、電極103を備える。
上述した第1実施形態では、シリコン基板101の裏面の全面に、i型非晶質半導体層102iを形成した後、i型非晶質半導体層102iの上にp型非晶質半導体層102pを形成し、その後、n型非晶質半導体層102nを形成する例を説明したが、p型非晶質半導体層102pとn型非晶質半導体層102nの形成順序はこれに限定されない。
図11Aは、本実施形態における光電変換装置の平面図を表す模式図である。図11Aにおいて、第1実施形態と同様の構成には第1実施形態と同じ符号を付している。
図12Aは、本実施形態における光電変換装置の平面図を表す模式図である。図12Aにおいて、第1実施形態と同様の構成には第1実施形態と同じ符号を付している。
図13Aは、本実施形態における光電変換装置の平面図を表す模式図である。図13Bは、図13Aに示す光電変換装置1Dの一部を拡大した模式図であり、図13Cは、図13Bに示す光電変換装置1Dの一部分をI−I線で切断した断面図である。図13B及び13Cでは、p型非晶質半導体層102p上のp型電極103pが形成された一部分を例示するが、n型非晶質半導体層102n上のn型電極103nが形成された部分も同様である。図13A〜13Cにおいて、第1実施形態と同様の構成には第1実施形態と同じ符号を付している。
図14Aは、本実施形態における光電変換装置の平面図を表す模式図である。図14Bは、図14Aに示す光電変換装置1Eの一部を拡大した模式図であり、図14Cは、図14Bに示す光電変換装置1Dの一部分をII−II線で切断した断面図である。図14B及び14Cでは、p型非晶質半導体層102p上のp型電極103pが形成された一部分を例示するが、n型非晶質半導体層102n上のn型電極103nが形成された部分も同様である。図14A〜14Cにおいて、第1実施形態と同様の構成には第1実施形態と同じ符号を付している。
上述した第1実施形態では、シリコン基板101の受光面にテクスチャが形成されている例を説明したが、シリコン基板101の裏面にテクスチャが形成されていてもよい。
本実施形態では、上述した第1実施形態から第7実施形態の少なくとも1つの光電変換装置を備えた光電変換モジュールについて説明する。図16は、本実施形態に係る光電変換モジュールの構成を示す概略図である。光電変換モジュール1000は、複数の光電変換装置11と、カバー1002と、出力端子1003,1004とを備える。
図17Aは、本実施形態に係る太陽光発電システムの構成を示す概略図である。太陽光発電システム1100は、光電変換モジュールアレイ1101と、接続箱1102と、パワーコンディショナー1103と、分電盤1104と、電力メーター1105とを備える。太陽光発電システム1100には、「ホーム・エネルギー・マネジメント・システム(HEMS:Home Energy Management System)」、「ビルディング・エネルギー・マネジメント・システム(BEMS:Building Energy Management System)」等の機能を付加することができる。これにより、太陽光発電システム1100の発電量の監視、太陽光発電システム1100に接続される各電気機器類の消費電力量の監視・制御等を行うことができ、エネルギー消費量を削減することができる。
図19Aは、本実施形態に係る太陽光発電システムの構成を示す概略図である。太陽光発電システム1200は、サブシステム1201〜120n(nは2以上の整数)と、パワーコンディショナー1211〜121nと、変圧器1221とを備える。太陽光発電システム1200は、図17A、17Bに示す太陽光発電システム1100よりも規模が大きい太陽光発電システムである。
以上、本発明の第1〜第10実施形態にかかる光電変換装置について説明した。本発明の光電変換装置は上述の各実施形態のみに限定されず、発明の範囲内で種々の変更が可能である。また、各実施形態は、適宜組み合わせて実施することが可能である。
Claims (5)
- 半導体基板と、
前記半導体基板の一方の面上に形成された第1導電型を有する第1非晶質半導体層と、
前記半導体基板の前記一方の面上に形成され、かつ前記半導体基板の面内方向において前記第1非晶質半導体層に隣接して形成され、前記第1導電型と反対の第2導電型を有する第2非晶質半導体層と、
前記第1非晶質半導体層、及び前記第2非晶質半導体層の少なくとも一方の半導体層の上に、離間して配置された複数の電極と、
前記複数の電極の上に形成され、前記複数の電極を電気的に接続する導電部と、
を備える光電変換装置。 - 半導体基板と、
前記半導体基板の一方の面上に櫛歯状に形成された第1導電型を有する第1非晶質半導体層と、
前記半導体基板の前記一方の面上に櫛歯状に形成され、かつ前記半導体基板の面内方向において前記第1非晶質半導体層に隣接して形成され、前記第1導電型と反対の第2導電型を有する第2非晶質半導体層と、
前記第1非晶質半導体層、及び前記第2非晶質半導体層の少なくとも一方の半導体層の上に、櫛歯状に形成された複数の電極と、
前記複数の電極の上に形成され、前記複数の電極を電気的に接続する導電部と、を備え、
前記電極は、前記半導体基板における第1の方向に略平行な第1の電極部分と、前記第1の方向に直交する第2の方向に略平行であり、前記第1の電極部分の一の辺に接する複数の第2の電極部分とを含み、
前記複数の電極は、前記第1の電極部分が前記第1の方向において互いに離間するように配置されている、光電変換装置。 - 請求項1又は2に記載の光電変換装置であって、
前記導電部は、金属ペーストからなる導電層を含む、光電変換装置。 - 請求項1から3のいずれか一項に記載の光電変換装置であって、
前記半導体基板の両面の少なくとも一方の面にテクスチャ形状を有する、光電変換装置。 - 請求項1から4のいずれか一項に記載の光電変換装置であって、
前記導電部と前記複数の電極とが接する領域以外の領域に絶縁層が設けられている、光電変換装置。
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