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SWIR-LWIR Photoluminescence from Sb-based Epilayers Grown on GaAs Substrates by using MBE
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS).
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), MPE-lab.
Acreo Swedish ICT AB, Kista, 16425, Sweden.
Acreo Swedish ICT AB, Kista, 16425, Sweden.
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2018 (English)In: Journal of the Korean Physical Society, ISSN 0374-4884, E-ISSN 1976-8524, Vol. 73, no 11, p. 1604-1611Article in journal (Refereed) Published
Abstract [en]

Utilizing Sb-based bulk epilayers on large-scale low-cost substrates such as GaAs for fabricating infrared (IR) photodetectors is presently attracting significant attention worldwide. For this study, three sample series of GaAsxSb1−x, In1−xGaxSb, and InAsxSb1−x with different compositions were grown on semi-insulating GaAs substrates by using molecular beam epitaxy (MBE) and appropriate InAs quantum dots (QDs) as a defect-reduction buffer layer. Photoluminescence (PL) signals from these samples were observed over a wide IR wavelength range from 2 ÎŒm to 12 ÎŒm in agreement with the expected bandgap, including bowing effects. In particular, interband PL signals from InAsxSb1−x and In1−xGaxSb samples even at room temperature show promising potential for IR photodetector applications. © 2018, The Author(s).

Place, publisher, year, edition, pages
The Korean Physical Society , 2018. Vol. 73, no 11, p. 1604-1611
Keywords [en]
IR detector, LWIR, MWIR, Sb-based thin films, SWIR
National Category
Condensed Matter Physics Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:hh:diva-38696DOI: 10.3938/jkps.73.1604Scopus ID: 2-s2.0-85058784548OAI: oai:DiVA.org:hh-38696DiVA, id: diva2:1276060
Available from: 2019-01-07 Created: 2019-01-07 Last updated: 2019-01-07Bibliographically approved

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Hussain, LaiqPettersson, HåkanJafari, Mehrdad

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Halmstad Embedded and Intelligent Systems Research (EIS)MPE-lab
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Condensed Matter PhysicsAtom and Molecular Physics and Optics

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