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Humidity Sensing Properties of the Sensor Based on V‐doped Nanoporous Ti 0.9 Sn 0.1 O 2 Thin Film
Author(s) -
Anbia Mansoor,
Moosavi Fard Seyyed Ebrahim,
Shafiei Korosh,
Hassanzadeh Mohammad Ali,
Mayahipour Abbas
Publication year - 2012
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201100125
Subject(s) - nanoporous , humidity , relative humidity , repeatability , thin film , hysteresis , doping , chemistry , substrate (aquarium) , vanadium , analytical chemistry (journal) , chemical engineering , materials science , nanotechnology , optoelectronics , inorganic chemistry , chromatography , organic chemistry , thermodynamics , condensed matter physics , physics , oceanography , geology , engineering
Abstract Vanadium doped nanoporous Ti 0.9 Sn 0.1 O 2 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 Ti 0.9 Sn 0.1 O 2 thin film shows good humidity sensing properties, and impendence of it decreases more than four orders of magnitude in the relative humidity (RH) range of 11%–95% at 25°C. 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 suggested to explain the humidity sensitive properties.