INVESTIGATIONS ON THE RESPONSE TO HUMIDITY OF AN INTERDIGITATED ELECTRODE STRUCTURE COATED WITH IODINE-DOPED POLYPHENYLACETYLENE

Authors
BEARZOTTI A FOGLIETTI V POLZONETTI G IUCCI G FURLANI A RUSSO MV
Citation
A. Bearzotti et al., INVESTIGATIONS ON THE RESPONSE TO HUMIDITY OF AN INTERDIGITATED ELECTRODE STRUCTURE COATED WITH IODINE-DOPED POLYPHENYLACETYLENE, Materials science & engineering. B, Solid-state materials for advanced technology, 40(1), 1996, pp. 1-4
Citations number
15
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Materials science & engineering. B, Solid-state materials for advanced technology → ACNP
ISSN journal
09215107
Volume
40
Issue
1
Year of publication
1996
Pages
1 - 4
Database
ISI
SICI code
0921-5107(1996)40:1<1:IOTRTH>2.0.ZU;2-V
Abstract
The sensitivity to relative humidity of a sensor based on I-2-doped po lyphenylacetylene thin film membranes has been investigated. The senso r geometry allows its application in miniature devices. The response t o humidity variations (20%-80%) is fast and reproducible for long time s (months). The I/V characteristics suggest that ionic type conductivi ty is prevailing. Current intensity measurements performed on films of different thicknesses show that surface conductivity is mainly respon sible for the sensor's electrical response.