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).
Iodine-doped Polyphenylacetylene Thin-film As A Humidity Sensor / A., Furlani; G., Iucci; Russo, Maria Vittoria; A., Bearzotti; A., Damico. - In: SENSORS AND ACTUATORS. B, CHEMICAL. - ISSN 0925-4005. - 8:(1992), pp. 123-126. [10.1016/0925-4005(92)85018-R]
Iodine-doped Polyphenylacetylene Thin-film As A Humidity Sensor
RUSSO, Maria Vittoria;
1992
Abstract
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).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
