SURFACE SPECTROSCOPY STUDY OF CDSE AND CDS THIN-FILM OXYGEN SENSORS

Authors
SMYNTYNA V GERASUTENKO V GOLOVANOV V KACIULIS S MATTOGNO G VITICOLI S
Citation
V. Smyntyna et al., SURFACE SPECTROSCOPY STUDY OF CDSE AND CDS THIN-FILM OXYGEN SENSORS, Sensors and actuators. B, Chemical, 22(3), 1994, pp. 189-194
Citations number
20
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
Sensors and actuators. B, Chemical → ACNP
ISSN journal
09254005
Volume
22
Issue
3
Year of publication
1994
Pages
189 - 194
Database
ISI
SICI code
0925-4005(1994)22:3<189:SSSOCA>2.0.ZU;2-Q
Abstract
Two principal forms of oxygen chemisorption on the surface of CdSe and CdS gas sensors have been revealed by X-ray photoelectron spectroscop y and thermal desorption mass spectrometry experiments. For the chemis orbed O-2(-), the characteristic binding energy of the O 1s electrons is found to be 531.8+/-0.2 eV and for the chemisorbed O-, 531.1+/-0.2 eV. The concentration of the chemisorbed oxygen increases when the sur face of the investigated sensor is enriched or doped with metal atoms.