Article ID Journal Published Year Pages File Type
10411035 Sensors and Actuators B: Chemical 2005 5 Pages PDF
Abstract
Nanostructured-bilayered potassium tantalate (KT): titania (TiO2) films are prepared by the sol-gel process, and the humidity sensing behaviors of the films are investigated. The films possess nanosized grains and nanoporous structure. Bilayered KT/TiO2 and TiO2/KT films exhibit improved linearity with narrow hysteresis loop in the resistance variation for relative humidity compared to monolayered TiO2 and KT films. The bilayered KT/TiO2 and TiO2/KT films show over three orders of change in the resistance during the relative humidity variation from 20 to 90%. The humidity sensing properties in the nanostructured KT: TiO2 films are discussed.
Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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