PHOTOINDUCED EFFECTS IN POLYTHIOPHENE FILM.

被引：0

作者：

Shiraishi, Taketora ^{[1
]}

Kaneto, Keiichi ^{[1
]}

Yoshino, Katsumi ^{[1
]}

机构：

[1] Osaka Univ, Suita, Jpn, Osaka Univ, Suita, Jpn

来源：

Technology Reports of the Osaka University | 1986年 / 36卷 / 1844-1864期

关键词：

PHOTOELECTRICITY - SEMICONDUCTING FILMS;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Photoinduced electron spin resonance (ESR) and conductivity of a conducting polymer, polythiophene film have been studied. The ESR spin density and linewidth in the slightly doped film decrease upon illumination of the infrared light, suggesting that polarons with spins interact with photoexcited electrons from the polaronic state and/or valence band. The photocurrent spectrum of an undoped film indicates the generation of photocarriers by the interband excitation. In doped films, the photoresponse is observed at an infrared region too, originating from the excitation of gap states. Variations of absorption spectra by reducing temperature in doped films are also studied.

引用

页码：329 / 334