Narrow-Band-Gap Conjugated Chromophores with Extended Molecular Lengths

被引：125

作者：

Liu, Xiaofeng ^{[1
,2
]}

Sun, Yanming ^{[1
,3
]}

Perez, Louis A. ^{[1
,4
]}

Wen, Wen ^{[1
,2
]}

Toney, Michael F. ^{[5
]}

Heeger, Alan J. ^{[1
,3
]}

Bazan, Guillermo C. ^{[1
,2
,4
]}

机构：

[1] Univ Calif Santa Barbara, Ctr Polymers & Organ Solids, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

[3] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[4] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

[5] SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 51期

基金：

美国国家科学基金会;

关键词：

ORGANIC SOLAR-CELLS; X-RAY REFLECTIVITY; INTERFACIAL LAYER; FILM MORPHOLOGY; HOLE-INJECTION; THIN-FILM; PERFORMANCE; POLYMER; EFFICIENT; DESIGN;

D O I：

10.1021/ja310483w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The influence of extending the molecular length of donor acceptor chromophores on properties relevant to organic optoelectronic devices has been studied by using two new narrow-band-gap systems. Most significantly, we find that the higher molecular weight systems exhibit higher thermal stabilities (beyond 200 degrees C) when introduced into field effect transistor devices. It is also possible to fabricate bulk heterojunction solar cells using PC61BM with power conversion efficiencies >6%. These high values are not heavily influenced by the blend composition and are achieved without the influence of solvent additives or postdeposition thermal annealing.

引用

页码：20609 / 20612

页数：4

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