Photoinduced infrared absorptions from conjugated polymers with nondegenerate ground states

被引：9

作者：

Cha, YH ^{[1
]}

Furukawa, Y ^{[1
]}

Tasumi, M ^{[1
]}

Noguchi, T ^{[1
]}

Ohnishi, T ^{[1
]}

机构：

[1] SUMITOMO CHEM CO LTD,TSUKUBA RES LAB,TSUKUBA,IBARAKI 30032,JAPAN

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 273卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(97)00595-2

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：

Photoinduced infrared absorptions from poly(p-phenylene), poly(p-phenylenelinylene), poly(2,5-dioctyloxy-p-phenylenevinylene) and poly(2,5-thienylenevinylene) have been measured using the FT-IR difference-spectrum method, The observed photoinduced bands are attributable to photo-generated charged species which give rise to giant infrared intensities. The excitation-power dependences of the photoinduced absorption intensities can be explained by means of the bimolecular recombination of the positive and negative polarons that are formed from a polaron pair (interchain charge-transfer exciton) generated by photoirradiation. (C) 1997 Elsevier Science B,V.

引用

页码：159 / 163

页数：5

共 25 条

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