Planarized star-shaped oligothiophenes as a new class of organic semiconductors for heterojunction solar cells

被引:196
作者
de Bettignies, R [1 ]
Nicolas, Y [1 ]
Blanchard, P [1 ]
Levillain, E [1 ]
Nunzi, JM [1 ]
Roncali, J [1 ]
机构
[1] Univ Angers, UMR CNRS 6501, Grp Syst Conjugues Lineaires, F-49045 Angers, France
关键词
D O I
10.1002/adma.200305168
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Although compounds 1 and 2 (see Figure) have comparable conjugation lengths, the characterization of vacuum evaporated thin solid films shows that the star-shaped geometry of compound 1 favors a preferential horizontal orientation of the molecules onto the surface of the substrate, which results in a increase of the efficiency of the corresponding heterojunction solar cells under white-light illumination by a factor of 20.
引用
收藏
页码:1939 / 1943
页数:5
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