Roles of Au and Ag nanoparticles in efficiency enhancement of poly(3-octylthiophene)/C60 bulk heterojunction photovoltaic devices -: art. no. 203113

被引:143
作者
Kim, K [1 ]
Carroll, DL [1 ]
机构
[1] Wake Forest Univ, Dept Phys, Ctr Nanotechnol & Mol Mat, Winston Salem, NC 27109 USA
关键词
D O I
10.1063/1.2128062
中图分类号
O59 [应用物理学];
学科分类号
摘要
We obtained improved poly(3-octylthiophene) (P3OT)/C-60 bulk heterojunction photovoltaic devices by doping with stable and highly electrically conductive Au and Ag nanoparticles. Doped devices showed 50-70% improved efficiency, with the Ag nanoparticles exhibiting the greatest increase in efficiency. We suggest that a dominate mechanism for the efficiency enhancement of doped photovoltaic device is the improved electrical conductivity through the introduction of "dopant" levels within the band gap of the P3OT. (C) 2005 American Institute of Physics.
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页码:1 / 3
页数:3
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