Thickness dependent surface electrical conductivity in copper (II) phthalocyanine thin films

被引：9
作者：
Karan, Santanu [1 ]
Mallik, Biswanath [1 ]
机构：
[1] Indian Assoc Cultivat Sci, Dept Spect, Kolkata 700032, India
来源：
THIN SOLID FILMS | 2012年 / 520卷 / 06期
关键词：
Copper phthalocyanine; Nanostructured thin films; Semiconducting surfaces; Surface dark- and photoconductivity; Trap distribution; PHOTOCONDUCTIVITY; NANOPARTICLES; ORIENTATION; TEMPERATURE; NANOFLOWERS; TRANSISTORS; INJECTION; PROPERTY; BEHAVIOR; GOLD;
D O I：
10.1016/j.tsf.2011.10.030
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The electrical dark conduction properties of surface cells of copper (II) phthalocyanine (CuPc) thin films of various thicknesses have been studied as a function of voltage at different sample temperatures by using a specially designed conductivity chamber. The results have been analyzed on the basis of the space charge limited conduction theory. The trap distribution in the film surface has been found to be exponential type. Action spectra for the surface photoconductivity in CuPc films for various thicknesses have been performed at room temperature (303 K). The dependence of surface photoconductivity was studied as a function of intensity of the photoexciting light at different sample cell temperatures. The distribution of traps in this thin film surface has been determined from the intensity dependence of surface photocurrent and the results have been compared with the results of dark conductivity measurement. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：2343 / 2350
页数：8
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