Efficient solution-processed photovoltaic cells based on an anthradithiophene/fullerene blend

被引：188

作者：

Lloyd, Matthew T.

Mayer, Alex C.

Subramanian, Sankar

Mourey, Devin A.

Herman, Dave J.

Bapat, Amit V.

Anthony, John E.

Malliaras, George G. ^{[1
]}

机构：

[1] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA

[2] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 29期

关键词：

D O I：

10.1021/ja072147x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report photovoltaic cells based on solution-processed blends using a novel anthradithiophene derivative as the donor and a fullerene derivative as the acceptor. Solvent vapor annealing of these blends leads to the formation of spherulites, which consist of a network of anthradithiophene crystallites dispersed in an amorphous matrix composed primarily of fullerene. We observe a direct correlation between coverage of a device with spherulites and its performance. Devices with 82% spherulite coverage reach a power conversion efficiency of 1%, which makes them one of the highest performing solution-processed small molecule photovoltaic cells to date.

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页码：9144 / 9149

页数：6

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