Research Article | OPEN ACCESS
Quantum Efficiency Effects on Modal Gain, Threshold Current and Threshold Current Density of PbSe/Pb0.934Sr0.066 Se Multiple Quantum Well Structure
Majed Khodr
Department of Electronics and Communications Engineering, American University of Ras Al Khaimah, P.O. Box 10021, Ras Al Khaimah, United Arab Emirates
Research Journal of Applied Sciences, Engineering and Technology 2016 5:607-611
Received: October 9, 2015 | Accepted: October 30, 2015 | Published: March 05, 2016
Abstract
In this study we studied the effects of internal quantum efficiency on PbSe/Pb0.934Sr0.066 Se multiple Quantum well Structure. The calculations were done on the modal gain, threshold current and threshold current density of the system. Inclusion of the theoretical internal quantum efficiency increased the threshold current and threshold current density values by almost 10 times with no effects on the modal gain values. However, when the experimental internal quantum efficiency was included, the above increase was even more. It was included that there is a leakage current above the barrier which is needed to account for in any practical application.
Keywords:
Auger recombination, leakage current, lead salts, quantum efficiency,
References
-
Findlay, P.C., C.R. Pidgeon, R. Kotitschke, A. Hollingworth, B.N. Murdin, C.J. Langerak, A.F. Van der Meer, C.M. Ciesla, J. Oswald, A. Homer, G. Springholz and G. Bauer, 1998. Auger recombination dynamics of lead salts under picosecond free-electron-laser excitation. Phys. Rev. B, 58: 12908-12915. http://journals.aps.org/ prb/abstract/10.1103/PhysRevB.58.12908.
CrossRef Direct Link -
Hanna, M.C., R.J. Ellingson, M. Beard, P. Yu, O.I. Micic and A.J. Nozik, 2005. Quantum dot solar cells: High efficiency through multiple exciton generation. Proceeding of the DOE Solar Energy Technologies Program Review Meeting DOE/GO-102005-2067. http://en.coe.pku.edu.cn/Faculty-A-Z/120. htm.
Direct Link -
Khodr, M.F., B.A. Mason and P.J. McCann, 1996. Effects of band Non-parabolicity on the gain and current density in EuSe/PbSe0.78Te0.22/EuSe IV-VI semiconductor quantum well lasers. IEEE J. Quantum Elect., 32(2): 236-247. http://ieeexplore. ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=481871.
Direct Link -
Khodr, M.F., B.A. Mason and P.J. McCann, 1998. Optimizing and engineering EuSe/PbSe0.78Te 0.22/EuSe multiple quantum well laser structures. IEEE J. Quantum Elect., 34(9): 1604-1611. http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=709577&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D709577.
Direct Link -
Kim, C.S., C.L. Canedy, E.H. Aifer, M. Kim, W.W. Bewley et al., 2007. Molecular beam epitaxy growth of antimonide type-II “W” high-power interband cascade lasers and long-wavelength infrared photodiodes. J. Vac. Sci. Technol. B, 25: 991-994. http://scitation.aip.org/content/avs/ journal/jvstb/25/3/10.1116/1.2484728.
CrossRef -
Lehtinen, J. and T. Kuusela, 2014. Broadly tunable quantum cascade laser in cantilever-enhanced photoacoustic infrared spectroscopy of solids. Appl. Phys. B, 115(3): 413-418. http://link.springer.com/article/10.1007%2Fs00340-013-5617-9.
CrossRef -
Razeghi, M., N. Bandyopadhyay, Y. Bai, Q. Lu and S. Slivken, 2013. Recent advances in mid infrared (3-5µm) quantum cascade lasers. Opt. Mater. Express, 3(11): 1872-1884. https://www.osapublishing.org/ ome/abstract.cfm?uri=ome-3-11-1872.
CrossRef -
Yang, R., C. Hill and B. Yang, 2005. High-temperature and low-threshold mid-infrared interband casade lasers. Appl. Phys. Lett., 87: 151109. http://scitation.aip.org/content/aip/journal/apl/87/15/10.1063/1.2103387.
CrossRef
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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