Bi-layer photovoltaic devices with PPQ as the electron acceptor layer

被引：8

作者：

Kymakis, E

Koudoumas, E

Franghiadakis, I

机构：

[1] TEI Crete, Dept Elect Engn, Iraklion 71004, Crete, Greece

[2] TEI Crete, Dept Sci, Iraklion 71500, Crete, Greece

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2006年 / 90卷 / 12期

关键词：

organic and polymer photovoltaics; solar cells; bi-layers; p-n junction;

D O I：

10.1016/j.solmat.2005.09.006

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Photovoltaic cells made from bi-layer thin-film heterojunctions having poly(3-octylthiophene) (P3OT) as the electron donor and poly(phenylquinoxaline) (PPQ) as the electron acceptor have been investigated. The photovoltaic characteristics of the heterojunction device are considerably enhanced from those in a single-layer device. The photocurrent is improved by almost two orders of magnitude, and the open-circuit voltage corresponds to the estimated energy level difference of the two polymers. The observed enhancement of the heterojunction device has been discussed in terms of photoinduced charge transfer between P3OT and PPQ. The results showed that PPQ can be regarded as an efficient electron acceptor material. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1705 / 1714

页数：10

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