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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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.
| Author(s): | Schulz, S., Caro, M.A., Tan, L.-T., Parbrook, P.J., Martin, R.W. and O'Reilly, E.P. | Item type: | Article |
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| 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: | 28 Mar 2018 09:15 |
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| URI: | https://strathprints.strath.ac.uk/id/eprint/47231 |
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