影像科学与光化学 ›› 1990, Vol. 8 ›› Issue (3): 233-235.DOI: 10.7517/j.issn.1674-0475.1990.03.233

• 研究简报 • 上一篇    下一篇

反式聚苯乙炔的光电导

洪海平, 周淑琴, 邱家白, 金祥凤   

  1. 中国科学院化学研究所, 北京 100080
  • 收稿日期:1989-12-21 修回日期:1990-02-13 出版日期:1990-08-20 发布日期:1990-08-20
  • 通讯作者: 金祥凤
  • 基金资助:
    国家自然科学基金

PHOTO CONDUCTIVITIES OF TRANSPOL YPHEN YLACET YLENE

HONG HAI-PING, ZHOU SHU-QIN, Qiu JIA-BAI, JIN XIANG-FENG   

  1. Institute of Chemistry, Academia of Sinica, Beijing 100080
  • Received:1989-12-21 Revised:1990-02-13 Online:1990-08-20 Published:1990-08-20

摘要: 聚苯乙炔(PPA)是一种共轭高分子材料,具有较好的光电导性能。因反式PPA比顺式具有较高的光暗比,本文研究了反式PPA的光导和暗导特性,得到的光、暗导曲线基本平行,说明本征载流子和光生载流子的输运机制是相似的。在欧姆区的光导和暗导的活化能分别为0.24±0.03eV和0.58±0.03eV。

关键词: 聚苯乙炔, 光电导, 伏安特性

Abstract: The photo- and dark-conductivities of trans-polyphenylacetylene were studied.The V-I curves are basically parallel which indicates that the carrier transport mechanism of photo-and dark-conduction is similar.From the experiments at different temperatures,it was obtained that the activation energies of the samples at photo- and dark-conduction in ohmic region are 0.24±0.03eV and 0.58±0.03eV,respectively.

Key words: polyphenylacetylene, photoconductivity, V-I characteristics