Ternary alloys Al1–x
N are promising materials to use at high temperature due to their high mechanical hardness, high thermal conductivity and large dielectric constant. The determination of the energy band gap, refractive index and its variation
with temperature and composition are fundamentally important to fabricate optoelectronic devices based on these materials. We have presented a theoretical procedure to study temperature dependence of the energy band gap and refractive index for the entire range of the alloy composition x
of ternary alloy Al1–x
N. The calculations based on the pseudopotential formalism in which local potential coupled with the virtual crystal approximation (VCA). To include exchange and correlation effects, local field correction function due to Nagy
is employed. It is found that the energy band gap decreases while refractive index increases with the increase gallium concentration in Al1–x
N. Refractive index also increases with increase in temperature for different gallium concentration (x).
Our results for parent compounds are compared to experiment and other available theoretical findings and showed generally good agreement.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Department of Physics, VP and RPTP Science College, Vallabh Vidyanagar 388120, Gujarat, India
Department of Physics, Sardar Patel University, Vallabh Vidyanagar 388120, Gujarat, India
Publication date: November 1, 2016
More about this publication?
ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Ingenta Connect is not responsible for the content or availability of external websites