Phase Separation in Bulk Heterojunctions of Semiconducting Polymers and Fullerenes for Photovoltaics

被引：97

作者：

Treat, Neil D. ^{[1
,2
]}

Chabinyc, Michael L. ^{[3
,4
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2AZ, England

[2] Univ London Imperial Coll Sci Technol & Med, Ctr Plast Elect, London SW7 2AZ, England

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

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

来源：

ANNUAL REVIEW OF PHYSICAL CHEMISTRY, VOL 65 | 2014年 / 65卷

基金：

美国国家科学基金会;

关键词：

organic electronics; METHYL-ESTER PCBM; X-RAY-SCATTERING; SOLAR-CELLS; CONJUGATED POLYMERS; ORGANIC PHOTOVOLTAICS; MOLECULAR-WEIGHT; REGIOREGULAR POLY(3-HEXYLTHIOPHENE); NANOSCALE MORPHOLOGY; CHARGE SEPARATION; BLEND FILMS;

D O I：

10.1146/annurev-physchem-040513-103712

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Thin-film solar cells are an important source of renewable energy. The most efficient thin-film solar cells made with organic materials are blends of semiconducting polymers and fullerenes called the bulk heterojunction (BHJ). Efficient BHJs have a nanoscale phase-separated morphology that is formed during solution casting. This article reviews recent work to understand the nature of the phase-separation process resulting in the formation of the domains in polymer-fullerene BHJs. The BHJ is now viewed as a mixture of polymer-rich, fullerene-rich, and mixed polymer-fullerene domains. The formation of this structure can be understood through fundamental knowledge of polymer physics. The implications of this structure for charge transport and charge generation are given.

引用

页码：59 / 81

页数：23

共 121 条

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