DIFFERENCE BETWEEN OPTICAL-ENERGY GAPS OF GLASSY AND CRYSTALLINE SELENIUM-TELLURIUM ALLOYS

Authors
BHATNAGAR AK REDDY KV
Citation
Ak. Bhatnagar et Kv. Reddy, DIFFERENCE BETWEEN OPTICAL-ENERGY GAPS OF GLASSY AND CRYSTALLINE SELENIUM-TELLURIUM ALLOYS, Indian Journal of Pure & Applied Physics, 34(7), 1996, pp. 489-491
Citations number
16
Categorie Soggetti
Physics
Journal title
Indian Journal of Pure & Applied Physics → ACNP
ISSN journal
00195596
Volume
34
Issue
7
Year of publication
1996
Pages
489 - 491
Database
ISI
SICI code
0019-5596(1996)34:7<489:DBOGOG>2.0.ZU;2-F
Abstract
The photoacoustic technique has been used to determine the optical ene rgy gaps of glassy and crystalline Se-Te alloys as a function of Te co ncentration. It is found that the energy gap of glassy Se-Te alloys is always higher than that of crystalline alloys. Surprisingly,this diff erence in the energy gaps of crystalline and glassy Se-Te alloys does not depend upon the composition.