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Interface-induced electroluminescence in the type IIP-Ga0.84In0.16As0.22Sb0.78/n-In0.83Ga0.17As0.82Sb0.18 single heterojunction.

Moiseev, K. D. and Krier, A. and Mikhailova, M. P. and Yakovlev, Y. P. (2002) Interface-induced electroluminescence in the type IIP-Ga0.84In0.16As0.22Sb0.78/n-In0.83Ga0.17As0.82Sb0.18 single heterojunction. Journal of Physics D-Applied Physics, 35 (7). pp. 631-636. ISSN 0022-3727

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Abstract

Intense electroluminescence in the range 77-300 K has been observed from interface transitions in type II P-Ga0.84In0.16As0.22Sb0.78/n-In0.83Ga0.17As0.82Sb0.18 single heterojunctions grown by liquid phase epitaxy from an In-rich melt. The quaternary epitaxial layers forming the P-n heterojunction were unintentionally doped and grown lattice-matched onto a (100)-oriented n-type InAs substrate. The electroluminescence and photoluminescence emission spectra from the heterostructure were investigated in detail and are discussed below. The luminescence spectra contained two interface-induced emission bands: hnu(A) which was identified with radiative transitions between electron and hole quantum well sub-bands across the P-Ga0.84In0.16As0.22Sb0.78/n-In0.83Ga0.17As0.82Sb0.18 heterointerface, while the emission band hnu(B) originates from radiative transitions involving acceptor states in the narrow gap In0.83Ga0.17As0.82Sb0.18 near the type II heteroboundary.

Item Type: Article
Journal or Publication Title: Journal of Physics D-Applied Physics
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 4487
Deposited By: Dr Susan E. Krier
Deposited On: 19 Mar 2008 10:29
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 18:11
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/4487

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