Sb-based infrared materials and photodetectors for the 3-5 and 8-12 um range

Erick J. Michel; Jedon D. Kim; Seoijin Park; Jianren Xu; Ian T. Ferguson; Manijeh Razeghi

doi:10.1117/12.237694

12 April 1996 Sb-based infrared materials and photodetectors for the 3-5 and 8-12 μm range

Erick J. Michel, Jedon D. Kim, Seoijin Park, Jianren Xu, Ian T. Ferguson, Manijeh Razeghi

Author Affiliations +

Proceedings Volume 2685, Photodetectors: Materials and Devices; (1996) https://doi.org/10.1117/12.237694
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

In this paper, we report on the growth of InSb on (100) Si and (111)B GaAs substrates and the growth of InAsSb alloys for longer wavelength applications. The fabrication and characterization of photodetectors based on these materials are also reported. Both photoconductive and photovoltaic devices are investigated. The photodiodes are InSb p-i-n structures and InSb/InAs_1-xSb_x/InSb double heterostructures grown on (100) and (111)B semi-insulating GaAs and Si substrates by low pressure metalorganic chemical vapor deposition and solid source molecular beam epitaxy. The material parameters for device structures have been optimized through theoretical calculations based on fundamental mechanisms. InSb p-i-n photodiodes with peak responsivities approximately 10³ V/W were grown on Si and (111) GaAs substrates. An InAsSb photovoltaic detector with a composition of x equals 0.85 showed photoresponse up to 13 micrometers at 300 K with a peak responsivity of 9.13 X 10^-2 V/W at 8 micrometers . The R_oA product of InAsSb detectors has been theoretically and experimentally analyzed.

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Erick J. Michel, Erick J. Michel, Jedon D. Kim, Jedon D. Kim, Seoijin Park, Seoijin Park, Jianren Xu, Jianren Xu, Ian T. Ferguson, Ian T. Ferguson, Manijeh Razeghi, Manijeh Razeghi, } "Sb-based infrared materials and photodetectors for the 3-5 and 8-12 μm range", Proc. SPIE 2685, Photodetectors: Materials and Devices, (12 April 1996); doi: 10.1117/12.237694; https://doi.org/10.1117/12.237694

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