Enhanced ethanol sensing properties of multiple networked Au-doped In2O3 nanotube sensors

被引：40

作者：

An, Soyeon ^{[1
]}

Park, Sunghoon ^{[1
]}

Ko, Hyunsung ^{[1
]}

Jin, Changhyun ^{[1
]}

Lee, Wan In ^{[2
]}

Lee, Chongmu ^{[1
]}

机构：

[1] Inha Univ, Dept Mat Sci & Engn, Inchon 402751, South Korea

[2] Inha Univ, Dept Chem, Inchon 402751, South Korea

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2013年 / 74卷 / 07期

基金：

新加坡国家研究基金会;

关键词：

Oxides; Nanostructures; Semiconductors; Vapor deposition; Electron microscopy; INDIUM OXIDE; THIN-FILM; MECHANISM; NO2; SELECTIVITY; NANOWIRES; NANOBELTS; NANORODS;

D O I：

10.1016/j.jpcs.2013.02.016

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In2O3 nanotubes were synthesized as gas sensors using TeO2 nanowires as a template. Scanning and transmission electron microscopy revealed the tubes to have diameters of a few hundred nanometers, wall thickness of similar to 25 nm and lengths up to a few millimeters. Multiple networked Au-doped In2O3 nanotube sensors showed responses of 187-1219% to 50-250 ppm C2H5OH at 300 C. These responses are far superior to those obtained by undoped In2O3 nanotubes and stronger than those obtained by pure In2O3 nanowires at 370 C. In addition, the ethanol sensing mechanism of the Au-doped In2O3 nanotube sensors is discussed. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：979 / 984

页数：6

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