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ELECTRON AFFINITY CHANGES INDUCED BY GASEOUS SPECIES PRESENT IN THE SOURROUNDING ATMOSPHERE

A. Tomescu1,* , R. Roescu1

Affiliation

  1. National Institute for Materials Physics, Bucharest, Romania

Abstract

A simultaneous evaluation of variation in electrical resistance and work function was carried out in order to calculate electron affinity changes induced by appearance of surface dipoles at sensor interface triggered by exposure to different gas species, respectively CO, CH4 and H2O..

Keywords

Fe2O3, Chemoresistive sensor, Surface conduction, Kelvin Probe technique, Surface dipoles, Electron affinity.

Submitted at: April 7, 2005
Accepted at: May 26, 2005

Citation

A. Tomescu, R. Roescu, ELECTRON AFFINITY CHANGES INDUCED BY GASEOUS SPECIES PRESENT IN THE SOURROUNDING ATMOSPHERE, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 3, pp. 1529-1532 (2005)