溶胶-凝胶法制备臭氧传感用In/sub 2/O/sub 3/薄膜

C. Jimenez, H.T. Sun, W. Wlodarski
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引用次数: 2

摘要

以异丙醇铟溶液为原料,采用溶胶-凝胶法制备了蓝宝石衬底上的In/sub 2/O/sub 3/薄膜。采用时效溶液和500/spl℃的退火温度,获得了高灵敏度的薄膜。在ppb范围内,随着臭氧浓度的增加,电阻大大增加。溶胶-凝胶衍生的传感器在45 ppb下具有高达6的臭氧灵敏度,工作温度低于200/spl℃。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Preparation of In/sub 2/O/sub 3/ thin films by sol-gel process for ozone sensing
In/sub 2/O/sub 3/ thin films on sapphire substrates have been prepared from indium isopropoxide solutions by sol-gel process. Highly sensitive films have been obtained by using aged solutions and 500/spl deg/C annealing temperature. The electrical resistance increases greatly with increasing ozone concentration in the ppb range. The sol-gel-derived sensors have ozone sensitivity as large as 6 at 45 ppb, and working temperature below 200/spl deg/C.
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