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Achievement of More Than 25% Conversion Efficiency With Crystalline Silicon Heterojunction Solar Cell

K. MasukoSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanMasato ShigematsuSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanTaiki HashiguchiSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanDaisuke FujishimaSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanMotohide KaiSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanNaoki YoshimuraSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanTsutomu YamaguchiSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanYoshinari IchihashiSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanTakahiro MishimaSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanNaoteru MatsubaraSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanTsutomu YamanishiSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanTsuyoshi TakahamaSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanMikio TaguchiSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanEiji MaruyamaSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, JapanShingo OkamotoSolar Business Unit, Eco Solutions Company, Panasonic Corporation, Kaizuka City, Osaka, Japan

2014en

ABI

Annotatsiya

The crystalline silicon heterojunction structure adopted in photovoltaic modules commercialized as Panasonic's HIT has significantly reduced recombination loss, resulting in greater conversion efficiency. The structure of an interdigitated back contact was adopted with our crystalline silicon heterojunction solar cells to reduce optical loss from a front grid electrode, a transparent conducting oxide (TCO) layer, and a-Si:H layers as an approach for exceeding the conversion efficiency of 25%. As a result of the improved short-circuit current (J <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">sc</sub> ), we achieved the world's highest efficiency of 25.6% for crystalline silicon-based solar cells under 1-sun illumination (designated area: 143.7 cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> ).

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Identifikatorlar

DOI: 10.1109/jphotov.2014.2352151

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