Mechanism analysis of BaTiO3 and polymer QAR composite humidity sensor

被引：22

作者：

Wang, Jing ^{[1
]}

Song, Gang ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Elect & Informat Engn, Key Lab Micro Nano Technol & Syst Liaoning Prov, Dalian 116023, Peoples R China

来源：

THIN SOLID FILMS | 2007年 / 515卷 / 24期

基金：

中国国家自然科学基金;

关键词：

humidity sensing mechanisms Direct current; Dielectric loss; Thermally stimulated depolarization current;

D O I：

10.1016/j.tsf.2007.03.137

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The humidity sensing mechanism of the composite material of nanometer barium titanate and polymer quaternary acrylic resin (QAR) is discussed in terms of d.c. property, dielectric loss and thermally stimulated depolarization current (TSDC). Various conducting carriers in different humidity ranges are identified by the direct current curves. The dielectric loss may be caused by the polarizations of dipole orientation and interface charge. The TSDC patterns show that the active energy and relaxation time of the dipoles in the composite materials take continuous, rather than discrete, values. (c) 2007 Elsevier B.V All rights reserved.

引用

页码：8776 / 8779

页数：4

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