Photoreflectance study of N- and Sb-related modifications of the energy gap and spin-orbit splitting in InNAsSb alloys

Kudrawiec, R. and Latkowska, M. and Misiewicz, J. and Zhuang, Qiandong and Godenir, A. M. R. and Krier, Anthony (2011) Photoreflectance study of N- and Sb-related modifications of the energy gap and spin-orbit splitting in InNAsSb alloys. Applied Physics Letters, 99 (1): 011904. ISSN 1077-3118

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Abstract

Photoreflectance spectroscopy has been used to study the energy gap and spin-orbit splitting in InNAsSb alloys containing different amounts of nitrogen and antimony. It has been observed that nitrogen mainly affects the conduction band, without having any influence on the spin-orbit splitting, whereas antimony significantly modifies the spin-orbit splitting. The N- and Sb-related modifications to the band structure lead to alloys which have a spin orbit splitting larger than the energy gap. Consequently, InNAsSb alloys are very promising for use in optoelectronic devices since they offer a route towards the reduction of non-radiative Auger recombination.

Item Type:
Journal Article
Journal or Publication Title:
Applied Physics Letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3101
Subjects:
?? physics and astronomy (miscellaneous) ??
ID Code:
51484
Deposited By:
Deposited On:
16 Nov 2011 11:31
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 12:31