Excited state spectroscopy in polymer fullerene photovoltaic devices under operation conditions

被引：7

作者：

Winder, C

Lungenschmied, C

Matt, G

Sariciftci, NS

Nogueira, AF

Montanari, I

Durrant, JR

Arndt, C

Zhokhavets, U

Gobsch, G

机构：

[1] Johannes Kepler Univ Linz, LIOS, A-4040 Linz, Austria

[2] Johannes Kepler Univ Linz, Christian Doppler Lab Plastiksolarzellen, A-4040 Linz, Austria

[3] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AY, England

[4] Tech Univ Ilmenau, Inst Phys, D-98684 Ilmenau, Germany

来源：

SYNTHETIC METALS | 2003年 / 139卷 / 03期

关键词：

conjugated polymers; fullerenes; organic solar cells; photoinduced absorption; photoinduced charge transfer;

D O I：

10.1016/S0379-6779(03)00288-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The discovery of a photoinduced charge transfer interaction between conjugated polymers and fullerenes led to intensive spectroscopic investigations as well as to high efficiency photovoltaic devices. Up to now, most spectroscopic investigations were performed on thin films, whereas little is known about the behavior of the charge carriers under working conditions of the device with an applied electric field. In this work, we investigated thin film photovoltaic devices by means of photoinduced absorption spectroscopy. Significant changes were observed for the polaron signal as well as the lifetime of the positive polaron on the conjugated polymer backbone upon changing the applied voltage on the device. The results are discussed in comparison with current-voltage characteristics of the devices. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：577 / 580

页数：4

共 13 条

[1] Effect of LiF/metal electrodes on the performance of plastic solar cells [J].