Temperature-dependent photoluminescence and terahertz time-domain spectroscopy of single-layered InAs/GaAs quantum dots grown via molecular beam epitaxy

Authors

Alexander E De los Reyes ⋅ PH National Institute of Physics, University of the Philippines Diliman
John Daniel E Vasquez ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Lorenzo P Lopez, Jr ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Hannah R Bardolaza ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Che-Yu Chang ⋅ TW Department of Physics, National Sun Yat-sen University
Der-Jun Jang ⋅ TW Department of Physics, National Sun Yat-sen University
Armando S Somintac ⋅ PH National Institute of Physics, University of the Philippines Diliman
Arnel A Salvador ⋅ PH National Institute of Physics, University of the Philippines Diliman
Elmer S Estacio ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

We investigate the temperature-dependence of the photoluminescence (PL) and terahertz (THz) emission characteristics of InAs/GaAs single-layered quantum dots (SLQDs) grown via molecular beam epitaxy (MBE). The temperature-behavior of the PL peaks and PL intensities were described using the Varshni and Arrhenius equation, respectively. The THz emission from the SLQDs was found to increase as temperature increases, possibly due to increase in the number of photo-carriers undergoing transport instead of recombination.

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Issue

2018: Proceedings of the 36th Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2018-3C-02

Section

Condensed Matter Physics and Materials Science

Published

2018-05-23

How to Cite

[1]

AE De los Reyes, JDE Vasquez, LP Lopez, HR Bardolaza, C-Y Chang, D-J Jang, AS Somintac, AA Salvador, and ES Estacio, Temperature-dependent photoluminescence and terahertz time-domain spectroscopy of single-layered InAs/GaAs quantum dots grown via molecular beam epitaxy, Proceedings of the Samahang Pisika ng Pilipinas 36, SPP-2018-3C-02 (2018). URL: https://proceedings.spp-online.org/article/view/SPP-2018-3C-02.