Characterization of gallium nitride grown on (0001) sapphire by plasma-enhanced atomic layer epitaxy

C. Y. Hwang, P. Lu, W. E. Mayo, Y. Lu, H. Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

α-GaN thin films have been grown on (0001) sapphire by a plasma-enhanced atomic layer epitaxy (PEALE) technique using a GaN buffer layer grown at lower temperatures. Both single crystal and polycrystal thin films have been obtained depending on the growth conditions, particularly, oxygen contamination of the plasma source and the substrate temperature. The defect structures at the films/ substrate interface were investigated by various X-ray methods such as rocking curves and phi scans, along with plane-view and cross-sectional TEM. Possible growth mechanisms of both the single crystal and polycrystalline films will be discussed.

Original languageEnglish (US)
Title of host publicationGrowth, Processing, and Characterization of Semiconductor Heterostructures
PublisherPubl by Materials Research Society
Pages347-352
Number of pages6
ISBN (Print)1558992251
StatePublished - 1994
EventProceedings of the 1993 Fall Meeting of the Materials Research Society - Boston, MA, USA
Duration: Nov 29 1993Dec 2 1993

Publication series

NameMaterials Research Society Symposium Proceedings
Volume326
ISSN (Print)0272-9172

Other

OtherProceedings of the 1993 Fall Meeting of the Materials Research Society
CityBoston, MA, USA
Period11/29/9312/2/93

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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