EFFECT OF IRRADIATION-INDUCED DISORDER ON THE OPTICAL-ABSORPTION SPECTRA OF CDS THIN-FILMS

Authors
NARAYANAN KL VIJAYAKUMAR KP NAIR KGM THAMPI NS
Citation
Kl. Narayanan et al., EFFECT OF IRRADIATION-INDUCED DISORDER ON THE OPTICAL-ABSORPTION SPECTRA OF CDS THIN-FILMS, Physica. B, Condensed matter, 240(1-2), 1997, pp. 8-12
Citations number
10
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
240
Issue
1-2
Year of publication
1997
Pages
8 - 12
Database
ISI
SICI code
0921-4526(1997)240:1-2<8:EOIDOT>2.0.ZU;2-N
Abstract
Optical absorption studies have been carried out on CdS thin-films irr adiated with low energy Ar+ ions. The optical band gap was found to re duce with the increase in the irradiation dose. This was accompanied b y a progressive reduction in the sharpness of the absorption band edge . These effects have been attributed to the irradiation-induced lattic e disorder. Post-irradiation annealing at 773 K resulted in the recove ry of the optical band gap and absorption edge sharpness to unirradiat ed values.