Characterization and transport properties of intercalated polypyrrole-vanadium pentoxide xerogel nanocomposite

被引：21
|
作者：
De, S [1 ]
Dey, A [1 ]
De, SK [1 ]
机构：
[1] Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, W Bengal, India
来源：
SOLID STATE COMMUNICATIONS | 2006年 / 137卷 / 12期
关键词：
nanocomposites; electrical and optical; intercalation;
D O I：
10.1016/j.ssc.2006.01.027
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Layered vanadium pentoxide (V2O5) xerogel is used as host material for the synthesis of conducting polypyrrole intercalated nanocomposites. Powder X-ray diffraction spectra show the increase of interlayer space Of V2O5 xerogel indicating the formation of polypyrrole in the interlayer space of the host. Thermal stability of intercalated polypyrrole is superior compared to bulk polypyrrole. De conductivity of the xerogel follows Arrhenius type temperature dependence while the nanocomposites exhibit Mott's three-dimensional variable range hopping. Optical band gap decreases with intercalation of polypyrrole. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：662 / 667
页数：6
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