A donor-acceptor polymer with a peculiar negative-charge-"trapping" characteristic

被引：21

作者：

Casalbore-Miceli, G

Gallazzi, MC

Zecchin, S

Camaioni, N

Geri, A

Bertarelli, C

机构：

[1] ISOF, I-40129 Bologna, Italy

[2] Politecn Milan, Dipartimento Chim Mat & Ingn Chim, I-20133 Milan, Italy

[3] IENI, I-35127 Padua, Italy

来源：

ADVANCED FUNCTIONAL MATERIALS | 2003年 / 13卷 / 04期

关键词：

D O I：

10.1002/adfm.200304250

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Voltammetric and spectrophotometric measurements of poly(3,3"-dipentoxy-3'-dicyanoethenyl-2,2':5',2"-terthiophene) (polyCN) films, in connection with other experimental evidence, reveal a normal oxidative, but a peculiar reductive behavior consisting of trapping of the negative charge during the cathodic scan. Another interesting property of polyCN films is the tendency to form strong intramolecular and intermolecular associations, probably charge-transfer (CT) complexes. These properties could account for the fact that the photovoltaic performance does not improve when polyCN is blended with a polythiophene donor.

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页码：307 / 312

页数：6

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