Enhanced device performance using different carbon nanotube types in polymer photovoltaic devices

被引：98

作者：

Arranz-Andres, Javier ^{[1
]}

Blau, Werner J. ^{[1
]}

机构：

[1] Univ Dublin Trinity Coll, Sch Phys, Dublin 2, Ireland

来源：

CARBON | 2008年 / 46卷 / 15期

基金：

爱尔兰科学基金会;

关键词：

D O I：

10.1016/j.carbon.2008.08.027

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effects of incorporating different types of carbon nanotubes (single-walled, SWCNT; double-walled, DWCNT; and multi-walled carbon nanotubes, MWCNT) in organic solar cells were studied. Different compositions of carbon nanotubes in poly(3-hexiltiophene) (P3HT) were investigated. Absorption spectroscopy, photoluminescence and current-voltage measurements using 10 mW/cm(2) white light illumination in air, were carried out to determine the photovoltaic behaviour of the organic solar cells prepared. The addition of carbon nanotubes (CNTs) to the polymer increases the power conversion efficiency by three orders of magnitude compared with the device without CNTs, but there is no clear connection with the number of walls or diameter of the nanotubes. A critical concentration value of 5 wt.% of CNT is found to achieve the highest open-circuit voltage and the best performance for the majority of the CNTs studied. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2067 / 2075

页数：9

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