POLYANILINE THIN-FILMS FOR GAS-SENSING

Authors
AGBOR NE PETTY MC MONKMAN AP
Citation
Ne. Agbor et al., POLYANILINE THIN-FILMS FOR GAS-SENSING, Sensors and actuators. B, Chemical, 28(3), 1995, pp. 173-179
Citations number
24
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
Sensors and actuators. B, Chemical → ACNP
ISSN journal
09254005
Volume
28
Issue
3
Year of publication
1995
Pages
173 - 179
Database
ISI
SICI code
0925-4005(1995)28:3<173:PTFG>2.0.ZU;2-V
Abstract
Thin films of polyaniline have been deposited by spinning, evaporation and by the Langmuir-Blodgett technique. The films are shown to posses s slightly different in-plane electrical conductivities, reflecting di fferences in their chemical structure and layer morphology. The conduc tivity is found to depend on the gas ambient. All types of polyaniline films are sensitive to H2S and NOx at concentrations down to 4 ppm. H owever, only spun and evaporated films are responsive to SO2.