Evaluation of local vibrational mode absorption caused by carbon in GaAs

Autor:	R. L. Henry, R. J. Gorman, P. E. R. Nordquist, J. S. Blakemore, S. B. Saban
Rok vydání:	1992
Předmět:	chemistry.chemical_classification Absorption spectroscopy Chemistry Absorption band Absorptance Transmittance Analytical chemistry General Physics and Astronomy Infrared spectroscopy Absorption (electromagnetic radiation) Temperature measurement Inorganic compound
Zdroj:	Journal of Applied Physics. 72:2505-2507
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.351543
Popis:	Room temperature measurements are reported of the mid‐infrared local vibrational mode (LVM) absorption caused by CAs acceptors in GaAs. A 30:1 range of carbon content was found among a group of 33 samples of melt‐grown semi‐insulating GaAs. The LVM absorption band area is compared with the dip ΔT this band makes in a transmittance spectral trace. The ratio (ΔT/t) of transmittance dip to sample thickness shows a useful correlation with the integrated LVM band area.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8b5fb6c5103f32bc54a085d62ab57e0a https://doi.org/10.1063/1.351543 Zobrazit plný text záznamu