Highly-strained InxGa1-xAs1-ySby/GaSb for mid-infrared devices

Charles Meyer II; Justin Grayer; Dan Paterson; Emily Cheng; Gregory Triplett

doi:10.1117/12.2040997

7 March 2014 Highly-strained In_xGa_1-xAs_1-ySb_y/GaSb for mid-infrared devices

Charles Meyer II, Justin Grayer, Dan Paterson, Emily Cheng, Gregory Triplett

Proceedings Volume 8980, Physics and Simulation of Optoelectronic Devices XXII; 898024 (2014) https://doi.org/10.1117/12.2040997
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

In this work, we report on In_xGa_1-xAs_1-ySb_y/GaSb structures, where the indium mole fraction (x) varies from x=0 to x<0.50. Although there has been considerable effort to exploit high-indium content In_xGa_1-xAs_1-ySb_y for longer wavelength applications, high misfit dislocation densities are inevitable and the miscibility gap remains a formidable barrier. In addition to atomically smooth structures, we observed three-dimensional networks of quantum dashes and other results reveal a self-organized composition modulation. Some physical features of the quantum dashes include near one-micron lengths, 90° flip in orientation, and uniformity across a 20 x 20 μm area. We also observe network formation up to a film thickness of 10-nm.

Citation Download Citation

Charles Meyer II, Justin Grayer, Dan Paterson, Emily Cheng, and Gregory Triplett "Highly-strained In_xGa_1-xAs_1-ySb_y/GaSb for mid-infrared devices", Proc. SPIE 8980, Physics and Simulation of Optoelectronic Devices XXII, 898024 (7 March 2014); https://doi.org/10.1117/12.2040997

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