Composition-dependent band gap and band-edge bowing in AIInN : a combined theoretical and experimental study

Schulz, S. and Caro, M.A. and Tan, L.-T. and Parbrook, P.J. and Martin, R.W. and O'Reilly, E.P. (2013) Composition-dependent band gap and band-edge bowing in AIInN : a combined theoretical and experimental study. Applied Physics Express, 6 (12). ISSN 1882-0778

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Official URL: https://doi.org/10.7567/APEX.6.121001

Abstract

A combined experimental and theoretical study of the band gap of AllnN is presented, which confirms the breakdown of the virtual crystal approximation (VCA) for the conduction and valence band edges. Composition-dependent bowing parameters for these quantities are extracted. Additionally, composition-dependent band offsets for GaN/AllnN systems are provided. We show that local strain and built-in fields affect the band edges significantly, leading to optical polarization switching at a much lower In composition than expected from a VCA approach.

Creators(s):	Schulz, S., Caro, M.A., Tan, L.-T., Parbrook, P.J., Martin, R.W. ORCID: https://orcid.org/0000-0002-6119-764X and O'Reilly, E.P.;
Item type:	Article
ID code:	47231
Keywords:	composition-dependent, band gap, band-edge, bowing, AlInN, experimental study, Physics, Physics and Astronomy(all), Engineering(all)
Subjects:	Science > Physics
Department:	Faculty of Science > Physics Technology and Innovation Centre > Bionanotechnology Technology and Innovation Centre > Photonics
Depositing user:	Pure Administrator
Date deposited:	19 Mar 2014 11:43
Last modified:	20 Jan 2021 21:08
Related URLs:	Scopus publication
URI:	https://strathprints.strath.ac.uk/id/eprint/47231
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