Investigation of thin film gorwth of B12As2 by chemical vapor deposition

R Nagarajan, JH Edgar, JW Pomeroy, M Kuball, T Aselage

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

The chemical vapor deposition of icosahedral boron arsenide, B12As2, on 6H-SiC (0001) (on and off-axis) substrates was studied using hydrides as the reactants. The effects of temperature and reactant flow rates on the phases deposited and the crystal quality were determined. The growth rate increased with temperature from 1.5mum/h at 1100 degreesC to 5 mum/h at 1400 degreesC and decreased thereafter. X-ray diffraction revealed that the deposits were amorphous when the deposition temperature is below 1150 degreesC. Above 1150 degreesC, smooth B12As2 films were formed on 6H-SiC substrates with an orientation of (0001) B12As2 parallel to 6H-SiC (0001). Raman spectroscopy confirmed the strongly c-axis oriented nature of B12As2 film on 6H-SiC.
Translated title of the contributionInvestigation of thin film gorwth of B12As2 by chemical vapor deposition
Original languageEnglish
Pages (from-to)283 - 287
Number of pages5
JournalMaterial Research Society Symposium Proceedings
Volume764
Issue numberSymposium C – New Applications for Wide-Bandgap Semiconductors
Publication statusPublished - 2003

Bibliographical note

Editors: Chyi, JI; Pearton, SJ; Han, J; Baca, AG; Chang, WH
ISBN: 1558997016
Publisher: Materials Research Society
Name and Venue of Conference: Symposium on New Applications for Wide-Bandgap Semiconductors, April 2003, San Francisco
Conference Organiser: Army Research Lab

Structured keywords

  • CDTR

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