Hopping conductivity in polycrystalline photoconductive Pb3O4 layers

被引：3

作者：

Avanesyan, V. T. ^{[1
]}

Potachev, S. A. ^{[1
]}

Baranova, E. P. ^{[1
]}

机构：

[1] Herzen State Pedag Univ Russia, St Petersburg 191186, Russia

来源：

SEMICONDUCTORS | 2009年 / 43卷 / 11期

关键词：

72.20.Ee; 71.23.An;

D O I：

10.1134/S1063782609110165

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Ac conductivity has been studied in polycrystalline Pb3O4 layers in the frequency range f = 10(2)-10(5) Hz at temperatures of 293-370 K; the conductivity has been measured in the dark and under illumination. Specific features of the charge-transport process are discussed. Analysis of the experimental data in terms of the Mott theory shows that the conduction is by the hopping mechanism and the charge transport occurs in the energy gap near the Fermi level. Microscopic parameters governing the conduction process, such as density of localized states and the average carrier's hopping distance, are determined for different temperatures.

引用

页码：1496 / 1498

页数：3