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Indium-incorporation enhancement of photoluminescence properties of Ga(In)SbBi alloys
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Linhart, Wojciech M., Gladysiewicz, Marta, Kopaczek, Jan, Rajpalke, Mohana, Ashwin, M. J., Veal, Timothy David and Kudrawiec, Robert (2017) Indium-incorporation enhancement of photoluminescence properties of Ga(In)SbBi alloys. Journal of Physics D: Applied Physics, 50 (37). 375102. doi:10.1088/1361-6463/aa7e64 ISSN 0022-3727.
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WRAP-indium-incorporation-enhancement-photoluminescence-Ashwin-2017.pdf - Accepted Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (1386Kb) | Preview |
Official URL: http://dx.doi.org/10.1088/1361-6463/aa7e64
Abstract
Ga(In)SbBi alloys grown by molecular-beam epitaxy on GaSb substrates with up to 5.5% In and 1.8% Bi were studied by temperature- and power-dependent photoluminescence (PL) and compared to previous photoreflectance (PR) results. High energy (HE) and low energy (LE) PL peaks were observed and attributed respectively to Ga(In)SbBi bandgap-related emission and native acceptor-related emission. For GaSbBi below 100 K, the HE peak is at slightly lower energy than the bandgap determined from PR, indicating carrier localization. This phenomenon is significantly weaker in PL of GaInSbBi alloys, suggesting that the presence of indium improves the optical quality over that of GaSbBi.
| Item Type: | Journal Article | ||||||||
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| Subjects: | T Technology > TN Mining engineering. Metallurgy | ||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
| Library of Congress Subject Headings (LCSH): | Indium alloys, Gallium alloys, Bismuth alloys, Antimony alloys | ||||||||
| Journal or Publication Title: | Journal of Physics D: Applied Physics | ||||||||
| Publisher: | IOP Publishing | ||||||||
| ISSN: | 0022-3727 | ||||||||
| Official Date: | 20 September 2017 | ||||||||
| Dates: |
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| Volume: | 50 | ||||||||
| Number: | 37 | ||||||||
| Article Number: | 375102 | ||||||||
| DOI: | 10.1088/1361-6463/aa7e64 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Date of first compliant deposit: | 13 July 2017 | ||||||||
| Date of first compliant Open Access: | 7 July 2018 | ||||||||
| Funder: | Narodowe Centrum Nauki [National Science Centre] (NCN), Engineering and Physical Sciences Research Council (EPSRC) | ||||||||
| Grant number: | 2013/10/E/ST3/00520, 2014/13/D/ST3/01947, 2015/17/N/ST3/02286 (NCN), EP/G004447/2 (EPSRC) |
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