Improving photovoltaic properties via electric-field-induced orientation of conjugated polymer

被引:22
作者
Jin, Hui [1 ]
Hou, Yanbing [1 ]
Shi, Quanming [1 ]
Meng, Xianguo [1 ]
Teng, Feng [1 ]
机构
[1] Beijing Jiaotong Univ, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China
基金
中国国家自然科学基金;
关键词
polymer; photovoltaic;
D O I
10.1016/j.ssc.2006.08.053
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
A high electric field is applied to polarize the undoped MEH-PPV and the MEH-PPV:C-60 composite thin film in the process of spin-coating. Due to the polarization causing the orientation of the MEH-PPV chains, the resulting thin-film devices show improved photovoltaic properties. For undoped MEH-PPV devices, oriented under the electric field of 6 x 103 V cm(-1), the short-circuit current (J(sc)) and the external quantum efficiency (EQE) are enhanced by a factor of 2.5 and 2, respectively. For MEH-PPV-fullerene composite devices, oriented under the same field, the J(sc) and the EQE are improved by a factor of 1.8 and 1.7, respectively. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:555 / 558
页数:4
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