DELAY PHOTOCONDUCTIVITY OF EMERALDINE BASE FILMS

被引：14

作者：

ZHURAVLEVA, TS

GLADKEVICH, AV

MISURKIN, PI

机构：

来源：

SYNTHETIC METALS | 1995年 / 69卷 / 1-3期

关键词：

D O I：

10.1016/0379-6779(94)02445-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Delay pulse photoconductivity of polyaniline (PANI) films in the form of emeraldine base (EB) has been investigated in the temperature range 120-300 K. Single pulses of the YAG:Nd3+ laser (the second harmonic) with 20 ns pulse duration were used as an e(g) xcitation source. It was found that the intensity and form of photoconductivity relaxation curves are dependent on the sample temperature. Experimental data were approximated by three functions: F-1 similar to exp[-(t/tau)(beta)], F-2 similar to exp(-t/tau) and F-3 similar to t(-n). The best fit to the experimental data by F-1 and F-3 functions suggests that the process of the conducting state relaxation in photoexcited conducting polymer is closely connected with the motion of electrons in a disordered medium with traps.

引用

页码：269 / 270

页数：2

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