[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.3938/jkps.73.1604

SWIR-LWIR Photoluminescence from Sb-based Epilayers Grown on GaAs Substrates by using MBE

Hussain, Laiq (Department of Mathematics, Physics and Electrical Engineering, Halmstad University)
Pettersson, Hakan (Department of Mathematics, Physics and Electrical Engineering, Halmstad University)
Wang, Qin (Acreo Swedish ICT AB)
Karim, Amir (Acreo Swedish ICT AB)
Anderson, Jan (Acreo Swedish ICT AB)
Jafari, Mehrdad (Department of Mathematics, Physics and Electrical Engineering, Halmstad University)
Song, Jindong (Center for Opto-Electronic Convergence Systems, Korea Institute of Science and Technology)
Choi, Won Jun (Center for Opto-Electronic Convergence Systems, Korea Institute of Science and Technology)
Han, Il Ki (Center for Opto-Electronic Convergence Systems, Korea Institute of Science and Technology)
Lim, Ju Young (Center for Opto-Electronic Convergence Systems, Korea Institute of Science and Technology)

Publication Information

Journal of the Korean Physical Society / v.73, no.11, 2018 , pp. 1604-1611 More about this Journal

Abstract

Utilizing Sb-based bulk epilayers on large-scale low-cost substrates such as GaAs for fabricating infrared (IR) photodetectors is presently attracting significant attention worldwide. For this study, three sample series of $GaAs_xSb_{1-x}$ , $In_{1-x}Ga_xSb$ , and $InAs_xSb_{1-x}$ with different compositions were grown on semi-insulating GaAs substrates by using molecular beam epitaxy (MBE) and appropriate InAs quantum dots (QDs) as a defect-reduction buffer layer. Photoluminescence (PL) signals from these samples were observed over a wide IR wavelength range from $2{\mu}m$ to $12{\mu}m$ in agreement with the expected bandgap, including bowing effects. In particular, interband PL signals from $InAs_xSb_{1-x}$ and $In_{1-x}Ga_xSb$ samples even at room temperature show promising potential for IR photodetector applications.

Keywords

SWIR; MWIR; LWIR; Sb-based thin films; IR detector;

Citations & Related Records

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