2016年 第77回応用物理学会秋季学術講演会

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一般セッション(ポスター講演)

16 非晶質・微結晶 » 16.3 シリコン系太陽電池

[15p-P13-1~17] 16.3 シリコン系太陽電池

2016年9月15日(木) 13:30 〜 15:30 P13 (展示ホール)

13:30 〜 15:30

[15p-P13-2] Nafion-Modified PEDOT:PSS/c-Si Solar Cells

Qiming Liu1、Jaker Hossain1、Takuya Miura1、Daisuke Harada1、Ryo Ishikawa1、Keiji Ueno1、Hajime Shirai1 (1.Saitama Univ.)

キーワード:heterojunction solar cells, PEDOT:PSS, Nafion

We demonstrate the chemistry of amphiphilic perfluorosulfonic copolymer Nafion-coated conductive PEDOT:PSS and its effect on the photovoltaic performance of PEDOT:PSS/Si heterojunction solar cells. In this study, solution-processed Nafion-modified PEDOT:PSS/c-Si heterojunction solar cells exhibited a higher power conversion efficiency over 14% with better stability for light soaking rather than the pristine device by adjusting the layer thickness of Nafion. These findings originate from following contributions, i.e., 1) Increased carrier mobility due to the extension of π-conjugation of PEDOT, 2) the resistance of the moisture and impurity due to Nafion layer, 3) Nafion over layer acts as an antireflection layer and 4) Silver paste as a top grid electrode diffuse and/or preferentially dissolved with Nafion, resulting in a good contact with underneath Nafion-modified PEDOT:PSS.