Tunable electrophysical properties of composites nano-CdS/polyvinyl alcohol

被引：3
作者：
Rudko, G. Yu. [1 ]
Kovalchuk, A. O. [1 ]
Bondarenko, V. A. [1 ]
Fediv, V. I. [2 ]
Gule, E. G. [1 ]
机构：
[1] Natl Acad Sci Ukraine, V Lashkaryov Inst Semicond Phys, UA-03028 Kiev, Ukraine
[2] Bukovinian State Med Univ, Dept Biophys & Med Informat, UA-58000 Chernovtsy, Ukraine
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2014年 / 148卷 / 1-2期
关键词：
Polymers; Nanostructures; Composite materials; Electrical conductivity; POLYVINYL-ALCOHOL; OPTICAL-PROPERTIES; FILMS; CURRENTS; MATRIX;
D O I：
10.1016/j.matchemphys.2014.07.014
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electrical d.c. conductivity of nano-CdS/polyvinyl alcohol composites with different nanoparticle concentrations and its temperature dependence were studied. The composites demonstrate increasing resistivity with CdS nanoparticles content. The current voltage characteristics of composites exhibit non-ohmic superlinear behavior that is interpreted in terms of space-charges-limited currents. Temperature dependence of resistivity is characterized by high temperature coefficient of resistivity which is favorable for applications in flexible, easy-to-shape thermistors. The tunability of the thermal sensitivity of CdS/polyvinyl alcohol composites was analyzed. (C) 2014 Elsevier B.V. All rights reserved.
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页码：77 / 81
页数：5
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