Humidity Sensing Properties of the Sensor Based on V-doped Nanoporous Ti0.9Sn0.1O2 Thin Film

作     者：Anbia, Mansoor Moosavi Fard, Seyyed Ebrahim Shafiei, Korosh Hassanzadeh, Mohammad Ali Mayahipour, Abbas 

作者机构：Research Laboratory of Nanoporous Materials Faculty of Chemistry Iran University of Science and Technology Farjam Street Narmak Tehran 16846 Iran Faculty of Chemical Engineering Iran University of Science and Technology Narmak Tehran Iran Institute for Chemical Research and Technology Tehran Iran 

出 版 物：《Chinese Journal of Chemistry》 (中国化学（英文版）)

年 卷 期：2012年第30卷第4期

页      面：842-846页

核心收录：

学科分类：070207[理学-光学] 07[理学] 080202[工学-机械电子工程] 08[工学] 0802[工学-机械工程] 0702[理学-物理学] 

主　　题：humidity sensing nanoporous V-doped 

摘      要：Vanadium doped nanoporous Ti0.9Sn0.1O2 thin film has been prepared on an alumina substrate by sol-gel method with Pluronic P123 as the organic template, and humidity sensing properties of it has been investigated. It is found that V-doped nanoporous Ti0.9Sn0.1O2 thin film shows good humidity sensing properties, and impendence of it de- creases more than four orders of magnitude in the relative humidity （RH） range of 11%--95% at 25 ℃. The response and recovery time of this sensor are about 13 and 17 s, respectively. High sensitivity, narrow hysteresis loop, rapid response and recovery, prominent stability and good repeatability are obtained. A possible mechanism is sug- gested to explain the humidity sensitive properties.