Influence of Ce(III)/Ce(IV) - supplements on the Characteristics of Humidity Sensors with TiO2 Films Prepared via a Sol-gel Method

被引：3

作者：

Kozhukharov, S. ^{[1
]}

Nenova, Z. ^{[2
]}

Nenov, T. ^{[2
]}

Machkova, M. ^{[1
]}

Kozhukharov, V. ^{[1
]}

机构：

[1] Univ Chem Technol & Met, 8 Kliment Ohridski Blvd, BU-1756 Sofia, Bulgaria

[2] Tech Univ Gabrovo, Gabrovo 5300, Bulgaria

来源：

BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO | 2013年 / 52卷 / 02期

关键词：

humidity sensors; sol-gel method; titania; cerium dopant; POROUS THIN-FILMS; SENSING PROPERTIES; TITANIUM; ANATASE; PRINCIPLES; DRIFT;

D O I：

10.3989/cyv.92013

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Humidity sensors have been prepared via a sol-gel method to deposit TiO2 films with additions of Ce-compounds on alumina substrates, with interdigitated silver palladium electrodes. Observations by scanning electron microscopy (SEM) were performed in order to determine the surface morphology of the respective layers. Structural and compositional characterization was done by X-ray diffraction analysis (XRD), and energy dispersive X-ray spectroscopy (EDX) for investigation of the relation between the film structures and the parameters of the respective sensors. The influence of Ce-compounds on the electrical characteristics of the samples as humidity sensing elements has been evaluated by an impedance analyzer.

引用

页码：71 / 78

页数：8

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