Improved efficiency of solution processed small molecules organic solar cells using thermal annealing

被引：29
作者：
Wan, Xiangjian
Liu, Yongsheng
Wang, Fei
Zhou, Jiaoyan
Long, Guankui
Chen, Yongsheng [1 ]
机构：
[1] Nankai Univ, Key Lab Funct Polymer Mat, Tianjin 300071, Peoples R China
来源：
ORGANIC ELECTRONICS | 2013年 / 14卷 / 06期
关键词：
Solution process; Small molecule; Organic solar cell; Bulk heterojunction; POWER-CONVERSION EFFICIENCY; POLYMER PHOTOVOLTAIC CELLS; PERFORMANCE;
D O I：
10.1016/j.orgel.2013.03.006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A solution processable A-D-A-D-A structure small molecule DCAEH5TBT using a BT unit as the core has been designed and synthesized for application in BHJ solar cells. The device employing DCAEH5TBT/PC61BM as active layer shows PCE of 2.43% without any post treatment. After thermal annealing (150 degrees C, 10 min), the PCE of this molecule based device increased to 3.07%, with J(sc) of 7.10 mA/cm(2), V-oc of 0.78 V and FF of 55.4%, which indicates that high performance of solution processed small molecule based solar cells can be achieved using thermal annealing by carefully design molecule structure. (C) 2013 Elsevier B. V. All rights reserved.
引用
收藏
页码：1562 / 1569
页数：8
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