Effect of sintering atmosphere on the electrical and optical properties of (ZnO)1-x(MnO2)x NTCR ceramics

被引：17

作者：

Yan, Xiaoxing ^{[1
]}

Xu, Guoyue ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 211100, Peoples R China

来源：

PHYSICA B-CONDENSED MATTER | 2009年 / 404卷 / 16期

基金：

中国国家自然科学基金;

关键词：

(ZnO)(1-x)(MnO2)(x); Sintering atmosphere; NTCR; PL; ZNO THIN-FILMS; THERMISTORS; COMPOSITE; MICROSTRUCTURE; LUMINESCENCE; TEMPERATURE; NANOWIRES; STABILITY; VARISTORS; MANGANESE;

D O I：

10.1016/j.physb.2009.04.045

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Nominal composition of (ZnO)(1-x)(MnO2)(x)(0.005 <= x <= 0.2) ceramics have been prepared by the standard solid-state reaction method in three different sintering atmospheres: Ar, air, and reductive atmosphere. The effect of sintering atmosphere on the electron spin resonance (ESR), negative temperature coefficient of resistivity (NTCR), and photoluminescence (PL) properties of (ZnO)(1-x)(MnO2)(x) ceramics has been investigated in detail. The results demonstrate that the sintering atmosphere has significant effects on the ESR signals of (ZnO)(1-x)(MnO2)(x); the NTCR of the samples sintered in air is larger than those sintering in Ar and reductive atmosphere; the deep-level PL related to oxygen vacancy increases when sintered in the reductive atmosphere. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2377 / 2381

页数：5

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