Nano Archive

INVESTIGATION OF OXYGEN-CHEMISORPTION ON THE SURFACE OF CDSE0.8TE0.2 THIN-FILMS BY X-RAY PHOTOELECTRON-SPECTROSCOPY AND TRANSMISSION ELECTRON-MICROSCOPY

Sebastian , P. J. and Sivaramakrishnan , V. (1990) INVESTIGATION OF OXYGEN-CHEMISORPTION ON THE SURFACE OF CDSE0.8TE0.2 THIN-FILMS BY X-RAY PHOTOELECTRON-SPECTROSCOPY AND TRANSMISSION ELECTRON-MICROSCOPY. THIN SOLID FILMS, 189 (1). pp. 183-191. ISSN 0040-6090

Full text is not hosted in this archive but may be available via the Official URL, or by requesting a copy from the corresponding author.

Official URL: http://www.sciencedirect.com/science?_ob=ArticleUR...

Abstract

The results of oxygen chemisorption studies performed on the surface of CdSe0.8Te0.2 thin films by X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) are reported. Films deposited at various substrate temperatures, differing deposition rates and of different thicknesses exhibited instability in film resistance with time (aging) when exposed to oxygen and atmosphere. An oxygen chemisorption model is used to explain the aging of the films in oxygen and atmosphere. The increased aging exhibited by films deposited at low rates and low substrate temperatures may be attributed to the greater number of selenium vacancies available for oxygen chemisorption. This was further supported by XPS and TEM of the films.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:7107
Deposited By:JNCASR
Deposited On:02 Sep 2009 11:32
Last Modified:02 Sep 2009 11:32

Repository Staff Only: item control page