Enhanced Photovoltaic Performance of Low-Bandgap Polymers with Deep LUMO Levels

被引：290

作者：

Zhou, Huaxing ^{[1
]}

Yang, Liqiang ^{[2
]}

Price, Samuel C. ^{[1
]}

Knight, Kelly Jane ^{[1
]}

You, Wei ^{[1
,2
]}

机构：

[1] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA

[2] Univ N Carolina, Curriculum Appl Sci & Engn, Chapel Hill, NC 27599 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2010年 / 49卷 / 43期

基金：

美国国家科学基金会;

关键词：

donor-acceptor systems; energy conversion; fullerenes; polymers; solar cells; HETEROJUNCTION SOLAR-CELLS; CONJUGATED POLYMERS; DESIGN;

D O I：

10.1002/anie.201003357

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Mind the gap! Polymers synthesized by replacing the benzene unit in the acceptor 4,7-dithien-2-yl-2,1,3-benzothiadiazole (DTBT) with a π-electron-deficient pyridine unit (DTPyT) show a smaller bandgap than their DTBT counterparts. Power conversion efficiencies of over 6% are demonstrated in solar cell studies (see picture; PNDT, PQDT, and PBnDT represent dithiophene derivatives as weak donors). © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：7992 / 7995

页数：4

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