JP2011507245A - 細長い、交差指型のエミッタ領域およびベース領域をうら側に有する裏面電極型太陽電池ならびにその製造方法 - Google Patents
細長い、交差指型のエミッタ領域およびベース領域をうら側に有する裏面電極型太陽電池ならびにその製造方法 Download PDFInfo
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Abstract
Description
3 うら側表面
5 エミッタ領域
7 ベース領域
9 電気絶縁層
11 エミッタ電極
13 ベース電極
21 エミッタブスバー
23 ベースブスバー
Claims (10)
- 半導体基板(1);
該半導体基板(1)のうら側表面(3)上の細長いベース領域(7)であって、ベースの半導体型をもつ該ベース領域(7);
該半導体基板(1)のうら側表面(3)上の細長いエミッタ領域(5)であって、ベースの半導体型とは反対のエミッタの半導体型をもつ該エミッタ領域(5);
該細長いエミッタ領域(5)を横断する、該エミッタ領域(5)と電気的に接触するための細長いエミッタ電極(11);および
該細長いベース領域(7)を横断する、該ベース領域(7)と電気的に接触するための細長いベース電極(13);を有する裏面電極型太陽電池であって、
該細長いエミッタ領域(5)は該細長いエミッタ電極(11)よりも小さな構造幅を有し、かつ、該細長いベース領域(7)は該細長いベース電極(13)よりも小さな構造幅を有する、裏面電極型太陽電池。 - 前記細長いエミッタ領域(5)および/または前記細長いベース領域(7)の平均構造幅が太陽電池の同じ領域の前記細長いエミッタ電極(11)および/または前記細長いベース電極(13)の平均構造幅よりも少なくとも10%少ない、請求項1に記載の裏面電極型太陽電池。
- 複数の細長いエミッタ領域(5)および複数の細長いベース領域(7)が、それぞれ、お互いに互い違いに隣接しながら、かつ、お互いに平行して配置され、複数の細長いエミッタ電極(11)および複数の細長いベース電極(13)がそれぞれお互いに互い違いにかつ平行に配置され、ならびに隣接するエミッタおよびベース領域の間の中心間距離(We,Wb)が隣接するエミッタ電極およびベース電極の間の中心間距離(WE,WB)よりも小さい、請求項1または2に記載の裏面電極型太陽電池。
- 前記細長いエミッタ電極(11)が前記細長いベース領域(7)を横断し、かつ、前記細長いベース領域(7)がそれらを横断する前記細長いエミッタ電極(11)から電気絶縁層(9)によって絶縁されている、請求項1〜3のいずれかに記載の裏面電極型太陽電池。
- 前記細長いベース電極(13)が細長いエミッタ領域(5)を横断し、かつ、前記細長いエミッタ領域(5)がそれらを横断する前記細長いベース電極(13)から電気絶縁層(9)によって絶縁されている、請求項1〜4のいずれかに記載の裏面電極型太陽電池。
- 前記半導体基板(1)のうら側表面(3)上の前記細長いベース領域(7)において、該半導体基板(1)の内部のベース領域よりも電気伝導性が高い、請求項1〜5のいずれかに記載の裏面電極型太陽電池。
- 前記エミッタ領域および前記ベース領域(5,7)が前記半導体基板(1)のうら側表面(3)に沿って実質的に均一に分散されている、請求項1〜6のいずれかに記載の裏面電極型太陽電池。
- 前記細長いベース領域(7)がエミッタブスバー(21)によって覆われる領域に突き出している、請求項1〜7のいずれかに記載の裏面電極型太陽電池。
- 前記細長いエミッタ領域(5)がベースブスバー(23)によって覆われる領域に突き出している、請求項1〜8のいずれかに記載の裏面電極型太陽電池。
- 半導体基板(1)を用意する;
該半導体基板(1)のうら側表面(3)上に細長いベース領域(7)であって、ベースの半導体型をもつベース領域(7)を形成する;
該半導体基板(1)のうら側表面(3)上に細長いエミッタ領域(5)であって、ベースの半導体型とは反対のエミッタの半導体型をもつエミッタ領域(5)を形成する;
該細長いエミッタ領域(5)を横断する、該エミッタ領域(5)に接触するための細長いエミッタ電極(11)を形成する;および
該細長いベース領域(7)を横断する、該ベース領域(7)に接触するための細長いベース電極(13)を形成する;工程を含む太陽電池を製造する方法であって、
該細長いエミッタ領域(5)が該細長いエミッタ電極(11)よりも小さな構造幅を有し、かつ、該細長いベース領域(7)が該細長いベース電極(13)よりも小さな構造幅を有する裏面電極型太陽電池を製造する方法。
Applications Claiming Priority (3)
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DE102007059486.2 | 2007-12-11 | ||
DE102007059486A DE102007059486A1 (de) | 2007-12-11 | 2007-12-11 | Rückkontaktsolarzelle mit länglichen, ineinander verschachtelten Emitter- und Basisbereichen an der Rückseite und Herstellungsverfahren hierfür |
PCT/EP2008/066432 WO2009074466A1 (de) | 2007-12-11 | 2008-11-28 | Rückkontaktsolarzelle mit länglichen, ineinander verschachtelten emitter- und basisbereichen an der rückseite und herstellungsverfahren hierfür |
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JP2011507245A true JP2011507245A (ja) | 2011-03-03 |
JP5463299B2 JP5463299B2 (ja) | 2014-04-09 |
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US (1) | US20110041908A1 (ja) |
EP (1) | EP2218107B1 (ja) |
JP (1) | JP5463299B2 (ja) |
CN (1) | CN101952972B (ja) |
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Also Published As
Publication number | Publication date |
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CN101952972A (zh) | 2011-01-19 |
CN101952972B (zh) | 2012-02-15 |
EP2218107A1 (de) | 2010-08-18 |
WO2009074466A1 (de) | 2009-06-18 |
EP2218107B1 (de) | 2016-10-19 |
DE102007059486A1 (de) | 2009-06-18 |
US20110041908A1 (en) | 2011-02-24 |
JP5463299B2 (ja) | 2014-04-09 |
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