Equivalent Circuit Models for Determination of the Relation between the Sensing Behavior and Properties of Undoped/Cr Doped TiO2 NTs

被引：34

作者：

Goenuellue, Yakup ^{[1
,2
]}

Kelm, Klemens ^{[1
]}

Mathur, Sanjay ^{[2
]}

Saruhan, Bilge ^{[1
]}

机构：

[1] German Aerosp Ctr DLR, Inst Mat Res, D-51147 Cologne, Germany

[2] Univ Cologne, Inst Inorgan Chem, D-50939 Cologne, Germany

来源：

CHEMOSENSORS | 2014年 / 2卷 / 01期

关键词：

Cr doping; TiO2; Nanotubes; gas sensors; equivalent circuit model;

D O I：

10.3390/chemosensors2010069

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

High-temperature gas sensing requires the increase of sensitivity and reduction of cross-sensitivity. The use of TiO2-Nanotubular layers as gas sensors has shown that the selectivity and sensitivity can be influenced by doping with trivalent elements and by optimization of morphological aspects such as pore diameter and nanotube length. In this work, focus has been given on the understanding of the effect of doping and properties of nano-tubular TiO2-layers on sensing behavior and mechanism toward NO2 by using equivalent circuit modeling achieved by impedance spectroscopic measurements.

引用

页码：69 / 84

页数：16

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