Pure and doped tin oxide sol-gel thin films for air quality monitoring

被引：0
|
作者：
Capone, S [1 ]
Rella, R [1 ]
Siciliano, P [1 ]
Vasanelli, L [1 ]
Epifani, M [1 ]
Licciulli, A [1 ]
机构：
[1] CNR, IME, Ist Studio Nuovi Mat Elettron, I-73110 Lecce, Italy
来源：
EUROSENSORS XII, VOLS 1 AND 2 | 1998年
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D O I：
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中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Undoped and Pd doped SnO2 thin films prepared by means of the sol-gel process were tested for detection of NO2 and CO and their gas sensing properties were studied in dry air The sensitivity to gases was studied in order to find the optimum detection temperature. Measurements of electrical resistance showed that these films have a sensitivity higher than 1000% for NO2 at temperatures in the range of 150-200 degrees C. On the contrary the response to CO is below 100% of the electrical variation.
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页码：613 / 616
页数：4
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