A novel organic n-type material: fluorinated perylene diimide

被引:46
作者
Chen, HZ [1 ]
Shi, MM
Aernouts, T
Wang, M
Borghs, G
Heremans, P
机构
[1] Zhejiang Univ, State Key Lab Silicon Mat, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China
[2] IMEC, B-3001 Heverlee, Belgium
关键词
perylene diimide; fluorination; electron mobility; stability;
D O I
10.1016/j.solmat.2004.07.056
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 order to increase the dissociation efficiency of electron-hole pairs (excitons) in organic solar cells, and to enhance the solubility of organic materials for easy fabrication, a novel perylene diimide with multiple strongly electron-withdrawing F atoms, N,N'-diperfluorophenyl-3,4,9,10-perylenetetracarboxylic diimide (DFPP), was designed and synthesized. The solubility of DFPP was improved greatly compared to its non-fluorinated parent, N,N'-diphenyl-3,4,9,10-peryienetetracarboxylic diimide (DPP), which might relate to the spatial arrangement of the phenyl versus the pentafluorophenyl groups. The field-effect-transistor (FET) with spin-coated DFPP film as transport layer was prepared, and its electron mobility was measured as 1.29 x 10(-1) cm(2) V-1 s(-1), 3.4 times higher than that from vacuum-deposited DPP film, demonstrating its potential applications in organic optoelectronic devices. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:521 / 527
页数:7
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