"Columnlike" Structure of the Cross-Sectional Morphology of Bulk Heterojunction Materials

被引：174

作者：

Moon, Ji Sun ^{[1
]}

Lee, Jae Kwan ^{[1
]}

Cho, Shinuk ^{[1
]}

Byun, Jiyun ^{[2
]}

Heeger, Alan J. ^{[1
]}

机构：

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

[2] Mayachitra Inc, Santa Barbara, CA 93111 USA

来源：

NANO LETTERS | 2009年 / 9卷 / 01期

基金：

美国国家科学基金会;

关键词：

SOLAR-CELLS; EXCITON DIFFUSION; POLYMER; POLYTHIOPHENE; EFFICIENCY;

D O I：

10.1021/nl802821h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The cross-sectional morphology of the bulk heterojunction (BHJ) films comprising regio-regular poly(3-hexylthiophene) (rrP3HT) and [6,6]phenyl-C61 butyric acid methyl ester (PCBM) was observed with transmission electron microscopy (TEM). The cross-sectional TEM images of the BHJ film provide information on the pathways for charge transport through the film thickness. The length scale of the phase separation was obtained from spatial Fourier transform analysis of the TEM images and from calculations of the autocorrelation function.

引用

页码：230 / 234

页数：5

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