Structural and luminescent properties of bulk InAsSb

Sarney, W. L.; Svensson, S. P.; Hier, H.; Kipshidze, G.; Donetsky, D.; Wang, D.; Shterengas, L.; Belenky, G.

doi:doi:10.1116/1.3670749

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Journal of Vacuum Science & Technology B / Volume 30 / Issue 2 / 28th North American Molecular Beam Epitaxy Conference

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J. Vac. Sci. Technol. B 30, 02B105 (2012); http://dx.doi.org/10.1116/1.3670749 (4 pages)

Structural and luminescent properties of bulk InAsSb

W. L. Sarney¹, S. P. Svensson¹, H. Hier¹, G. Kipshidze², D. Donetsky², D. Wang², L. Shterengas², and G. Belenky²

¹U.S. Army Research Laboratory, Sensors and Electron Devices Directorate, 2800 Powder Mill Road, Adelphi, Maryland 20783
²Department of Electrical and Computer Engineering, Stony Brook University, Stony Brook, New York 11794

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(Published online 21 December 2011)

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The strong bandgap bowing in the InAs_xSb₁₋_x alloy system allows it to potentially be used for infrared photodetection in the middle and long wavelength range. The authors have used compositionally graded metamorphic buffer layers to accommodate the misfit strain between InAs_xSb₁₋_x alloys and GaSb and InSb substrates in order to reach the long wave infrared range. In this work, we present the characterization of metamorphically grown InAs_xSb₁₋_x films that demonstrate strong photoluminescence in the spectral range from 5 to 9 μm.

Article Outline

INTRODUCTION
EXPERIMENT
RESULTS AND DISCUSSION
1. Structural characteristics of graded buffer layers on GaSb substrates
2. InAs _x Sb ₁₋ _x grown on InSb substrates
3. Optical characterization of InAs _x Sb ₁₋ _x layers
SUMMARY

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KEYWORDS and PACS

Keywords

buffer layers, energy gap, III-V semiconductors, indium compounds, photoluminescence, semiconductor thin films

PACS

81.05.Ea

III-V semiconductors
78.66.Fd

III-V semiconductors
78.55.Cr

III-V semiconductors
71.20.Nr

Semiconductor compounds

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History

Received 16 September 2011
Accepted 29 November 2011
Published online 21 December 2011

Digital Object Identifier

http://dx.doi.org/10.1116/1.3670749

PUBLICATION DATA

ISSN

1071-1023 (print)

1520-8567 (online)

Publisher

American Vacuum Society

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