Oligoselenophene Derivatives Functionalized with a Diketopyrrolopyrrole Core for Molecular Bulk Heterojunction Solar Cells

被引：60
|
作者：
Mazzio, Katherine A. [1 ]
Yuan, Mingjian [1 ]
Okamoto, Ken [1 ]
Luscombe, Christine K. [1 ]
机构：
[1] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA
来源：
ACS APPLIED MATERIALS & INTERFACES | 2011年 / 3卷 / 02期
基金：
美国国家科学基金会;
关键词：
organic photovoltaics; bulk heterojunction solar cells; oligoselenophenes; small molecule semiconductors; organic electronics; organic field-effect transistors; LOW-BAND-GAP; THIN-FILM TRANSISTORS; PHOTOVOLTAIC PROPERTIES; SEMICONDUCTING POLYMERS; ORGANIC PHOTOVOLTAICS; PERFORMANCE; ACCEPTOR; DONOR; EFFICIENCY; OLIGOTHIOPHENE;
D O I：
10.1021/am100920s
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Solution-processable oligoselenophenes functionalized with diketopyrrolopyrfole cores have! been synthesized for use as the donor material in bulk heterojunction solar cells. The optical " absorption of these materials extends to the edge of the visible spectrum. Power conversion efficiencies of 1.53 +/- 0.04% for DPPS and 0.84 +/- 0.04% for DPPDS were obtained under simulated 100 mW/cm(2) AM 1.5G irradiation for devices when PC61BM was used as an acceptor. DPPS showed hole mobilities of 4 x 10(-5) cm(2)/(V s) and a peak erternal quantum efficiency (EQE) of 25%, while DPPDS showed hole mobilities of 2 x 10(-5) cm(2)/(V s) and a peak EQE of 19%. To the best of our knowledge, these are the first oligoselenophenes that have been reported in molecular bulk heterojunction solar cells and this study could serve as a springboard for the design and optimization of high-performance selenophene-containing photovoltaics.
引用
收藏
页码：271 / 278
页数：8
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