4.2% efficient organic photovoltaic cells with low series resistances

被引:490
作者
Xue, JG [1 ]
Uchida, S [1 ]
Rand, BP [1 ]
Forrest, SR [1 ]
机构
[1] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA
关键词
D O I
10.1063/1.1713036
中图分类号
O59 [应用物理学];
学科分类号
摘要
We demonstrate double-heterostructure copper phthalocyanine/C-60 organic photovoltaic cells with series resistances as low as 0.1 Omega cm(2). A high fill factor of similar to0.6 is achieved, which is only slightly reduced at very intense illumination. As a result, the power conversion efficiency increases with the incident optical power density, reaching a maximum of (4.2+/-0.2)% under 4-12 suns simulated AM1.5G illumination. The cell performance is accurately described employing an analysis based on conventional semiconductor p-n junction diodes. The dependence of the series resistance on the device area suggests the dominance of the bulk resistance of the indium-tin-oxide anode as a limiting factor in practical cell efficiencies. (C) 2004 American Institute of Physics.
引用
收藏
页码:3013 / 3015
页数:3
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