Photovoltaic performance and stability of CdTe/polymeric hybrid solar cells using a C60 buffer layer

被引:25
作者
Shiga, Tohru [1 ]
Takechi, Kensuke [1 ]
Motohiro, Tomoyoshi [1 ]
机构
[1] Toyota Cent Res & Dev Labs Inc, Aichi 4801192, Japan
关键词
bulk hetero-junction; hybrid solar cell; buffer layer; C-60; CdTe nanocrystals; stability;
D O I
10.1016/j.solmat.2005.11.011
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The influence of C-60 as a buffer layer on photovoltaic performance and stability of bulk heterojunction solar cells using a photoactive layer of CdTe nanocrystals and poly(p-phenylenevinylene) derivative has been investigated. The incident photon-to-current conversion efficiency of the sealed-cells with a C-60 buffer layer was about 70% of that of solar cells using a buffer layer of LiF. The introduction of C-60 buffer layer gave an improvement in the stability for a light-harvesting test. In a long-term thermal stability test, there was no difference between the solar cells using C-60 and LiF. An impedance analysis suggested that the degradation of the performance in the stability tests was associated with a decrease in the conductance of the cells. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:1849 / 1858
页数:10
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