Determining the band gap of GaxIn1-xAsySb1-y quaternary alloy by infrared ellipsometric spectroscopy

Authors
Liang, BL Xia, GQ Huang, ZM Fan, SP Chu, JH
Citation
Bl. Liang et al., Determining the band gap of GaxIn1-xAsySb1-y quaternary alloy by infrared ellipsometric spectroscopy, J INF M W, 19(3), 2000, pp. 188-190
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF INFRARED AND MILLIMETER WAVES
ISSN journal
10019014 → ACNP
Volume
19
Issue
3
Year of publication
2000
Pages
188 - 190
Database
ISI
SICI code
1001-9014(200006)19:3<188:DTBGOG>2.0.ZU;2-O
Abstract
The refractive index spectra of GaxIn1-xAsySb1-y MBE epitaxy layers above, near and below the band gap were studied by room-temperature infrared ellip sometric spectroscopy with different compositions. The band-gaps were deter mined by refractive enhancement. It was found that the band gap energy chan ges approximately linearly as a function of composition between x=0.2 simil ar to 0.3.