Using Self-Organization To Control Morphology in Molecular Photovoltaics

被引：127

作者：

Kang, Seok Ju ^{[1
]}

Ahn, Seokhoon ^{[1
]}

Kim, Jong Bok ^{[3
]}

Schenck, Christine ^{[1
]}

Hiszpanski, Anna M. ^{[3
]}

Oh, Seokjoon ^{[1
]}

Schiros, Theanne ^{[2
]}

Loo, Yueh-Lin ^{[3
]}

Nuckolls, Colin ^{[1
]}

机构：

[1] Columbia Univ, Dept Chem, New York, NY 10027 USA

[2] Columbia Univ, Columbia Energy Frontier Res Ctr EFRC, New York, NY 10027 USA

[3] Princeton Univ, Dept Chem & Biol Engn, Princeton, NJ 08544 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2013年 / 135卷 / 06期

基金：

美国国家科学基金会;

关键词：

SOLAR-CELLS; EFFICIENCY; ARCHITECTURE; FULLERENES; CRYSTALS; POLYMERS;

D O I：

10.1021/ja308628z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This work explores the formation of well-defined molecular p-n junctions in solution-processed self-assembled heterojunction solar cells using dodecyloxy-substituted contorted hexabenzocoronene (12-c-HBC) as a donor material and phenyl-C-70-butyric acid methyl ester (PC70BM) as an acceptor. We find that the contorted 12-c-HBC molecules effectively assemble in solution to form a nested structure with the ball-shaped PC70BM. The result is a self-assembled molecular-scale p-n junction. When this well-defined p-n junction is embedded in active films, we can make efficient self-assembled solar cells with minimal amounts of donor material relative to the acceptor. The power conversion efficiency is drastically enhanced by the mode of donor and acceptor assembly within the film.

引用

页码：2207 / 2212

页数：6

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