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Proceedings Paper

Recent progress on low-temperature epitaxial growth of nitride semiconductors
Author(s): Qixin Guo; Mitsuhiro Nishio; Hiroshi Ogawa
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Paper Abstract

Indium nitride films were grown on (111)GaAs substrates by reactive magnetron sputtering using an indium target. It was found that the crystal quality of InN films depends strongly on the substrate temperature and sputtering gas pressure, and highly c-axis preferred wurtzite InN films can be obtained at growth temperature as low as 100 degrees Celsius. The influence of the substrate pretreatment on crystallinity of indium nitride films was also investigated. It was shown that the crystalline quality of InN layers grown on GaAs can be improved by presputtering the substrate in nitrogen plasma prior to the growth. By Auger electron spectroscopy and atomic force microscopy analysis we revealed that GaN islands form on the surface of GaAs substrate due to the presputtering. The optimum presputtering time for growing InN single crystal was assessed to be the time at which GaN islands cover the substrate surface entirely.

Paper Details

Date Published: 3 October 2000
PDF: 7 pages
Proc. SPIE 4220, Advanced Photonic Sensors: Technology and Applications, (3 October 2000); doi: 10.1117/12.401686
Show Author Affiliations
Qixin Guo, Saga Univ. (Japan)
Mitsuhiro Nishio, Saga Univ. (Japan)
Hiroshi Ogawa, Saga Univ. (Japan)

Published in SPIE Proceedings Vol. 4220:
Advanced Photonic Sensors: Technology and Applications
Jinfa Tang; Chao-Nan Xu; Haizhang Li, Editor(s)

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