Improving power conversion efficiency in polythiophene/fullerene-based bulk heterojunction solar cells

被引：42

作者：

Rait, Sukhbinder ^{[1
]}

Kashyap, Shipra

Bhatnagar, P. K.

Mathur, P. C.

Sengupta, S. K.

Kumar, J.

机构：

[1] Univ Delhi, Mat Lab, Dept Elect Sci, New Delhi 110021, India

[2] Univ Massachusetts Lowell, Ctr Adv Mat, Lowell, MA 01854 USA

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2007年 / 91卷 / 09期

关键词：

polythiophene; fullerene; annealing; composition; efficiency;

D O I：

10.1016/j.solmat.2007.01.004

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：

In the present work, we have studied photovoltaic devices fabricated from a blend of regioregular poly (3-hexlthiophene) (P3HT) and Buckminster fullerene. The solvent and composite ratio have been selected to obtain best morphology and minimum degradation. Buffer layers of poly (3,4-ethylenedioxythiophene) poly (styrenesulfonate) (PEDOT:PSS) at the anode and of LiF at the cathode were used to improve the device performance. It was further found that post-annealing of the devices for an optimum duration and temperature improves the solar cells, and the power conversion efficiency of the devices increases to 2.1% at AM 1.5. Though the efficiency using [6,6]-phenyl C60 butyric acid methyl ester (PCBM) as the composite acceptor instead Of C60 can be higher, it was not used because of its very high cost as compared to C-60. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：757 / 763

页数：7

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