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Growth features and spectroscopic structure investigations of nanoprofiled AlN films formed on misoriented GaAs substrates

Journal Article · · Semiconductors
; ; ;  [1]; ; ;  [2]
  1. Vozonezh State University (Russian Federation)
  2. Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)
Nanostructured aluminum-nitride films are formed by reactive ion-plasma sputtering onto GaAs substrates with different orientations. The properties of the films are studied via structural analysis, atomic force microscopy, and infrared and visible–ultraviolet spectroscopy. The aluminum-nitride films can have a refractive index in the range of 1.6–4.0 at a wavelength of ~250 nm and an optical band gap of ~5 eV. It is shown that the morphology, surface composition, and optical characteristics of AlN/GaAs heterophase systems can be controlled using misoriented GaAs substrates.
OSTI ID:
22649698
Journal Information:
Semiconductors, Journal Name: Semiconductors Journal Issue: 9 Vol. 50; ISSN SMICES; ISSN 1063-7826
Country of Publication:
United States
Language:
English