IODINE-DOPED POLYPHENYLACETYLENE THIN-FILM AS A HUMIDITY SENSOR

被引:33
作者
FURLANI, A
IUCCI, G
RUSSO, MV
BEARZOTTI, A
DAMICO, A
机构
[1] CNR,IESS,I-00156 ROME,ITALY
[2] UNIV TOR VERGATA,DIPARTIMENTO INGN ELETTR,I-00173 ROME,ITALY
关键词
D O I
10.1016/0925-4005(92)85018-R
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Thin films of iodine-doped polyphenylacetylene (PPA) have been investigated and used as humidity sensors. Measurements of resistance variations of a PPA/I2 system, induced by relative humidity variations ranging from 10 to 90%, have been performed at constant temperatures (25 and 30-degrees-C). The behaviour of the resistance versus relative humidity is found to be approximately exponential. Our samples show a good reversibility during humidity cycles and a relatively fast response time (a few seconds).
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页码:123 / 126
页数:4
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