Effect of Processing Additive on the Nanomorphology of a Bulk Heterojunction Material

被引：213

作者：

Moon, Ji Sun ^{[1
]}

Takacs, Christopher J. ^{[1
]}

Cho, Shinuk ^{[1
]}

Coffin, Robert C. ^{[1
]}

Kim, Heejoo ^{[1
]}

Bazan, Guillermo C. ^{[1
]}

Heeger, Alan J. ^{[1
]}

机构：

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

来源：

NANO LETTERS | 2010年 / 10卷 / 10期

关键词：

Polymer solar cell; bulk heterojunction; processing additive; transmission electron microscopy; bipolar field effect transistor; POLYMER SOLAR-CELLS; EXCITON DIFFUSION; POSTPRODUCTION TREATMENT; NANOSCALE MORPHOLOGY; EFFICIENCY; SEPARATION;

D O I：

10.1021/nl101923m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The bulk heterojunction (BHJ) material Si-PDTBT PC70BM is sensitive to the use of a small amount of 1 -chloronaphthalene (CN) as a processing additive. CN as a cosolvent (e g., 4% in chlorobenzene) causes in a factor of 2 increase in the power conversion efficiency of BHJ solar cells (1) The morphology of the BHJ material, prepared with and without the CN additive is studied with top-down transmission electron microscopy, cross-sectional transmission electron microscopy, and atomic force microscopy The improved performance is the result of changes in the nanoscale morphology Field-effect transistor measurements arc consistent with the observed changes in morphology

引用

页码：4005 / 4008

页数：4

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