DOI: 10.17586/1023-5086-2018-85-01-17-22

Немонотонная температурная зависимость оптических свойств четвертичного твердого раствора AlInGaN

Mehedi I. M., Hasan Md. S., Islam Md. R., Dobaie A. M.

Полный текст на elibrary.ru

Публикация в Journal of Optical Technology

Ссылка для цитирования:

I.M. Mehedi, Md.S. Hasan, Md.R. Islam, A.M. Dobaie Temperature dependent inhomogeneous optical behavior of AlInGaN quaternary alloy (Немонотонная температурная зависимость оптических свойств четвертичного твердого раствора AlInGaN) [на англ. яз.] // Оптический журнал. 2018. Т. 85. № 1. С. 17–22. http://doi.org/10.17586/1023-5086-2018-85-01-17-22

I.M. Mehedi, Md.S. Hasan, Md.R. Islam, A.M. Dobaie Temperature dependent inhomogeneous optical behavior of AlInGaN quaternary alloy (Немонотонная температурная зависимость оптических свойств четвертичного твердого раствора AlInGaN) [in English] // Opticheskii Zhurnal. 2018. V. 85. № 1. P. 17–22. http://doi.org/10.17586/1023-5086-2018-85-01-17-22

Ссылка на англоязычную версию:

I. M. Mehedi, Md. S. Hasan, Md. R. Islam, and A. M. Dobaie, "Temperature-dependent inhomogeneous optical behavior of AlInGaN quaternary alloys," Journal of Optical Technology. 85(1), 12-16 (2018). https://doi.org/10.1364/JOT.85.000012

Аннотация:

The temperature dependent anomalous optical properties of AlInGaN quaternary alloy have been studied using Monty-Carlo simulation of phonon-assisted exciton hopping. The simulation results are well agreed with the experimental photoluminescence line widths and the peak energy positions while considering the additional inhomogeneous broadening with band potential fluctuation and the phonon induced radiative lifetime of exciton. The incorporation of bandgap shrinkage to the conventional Monte-Carlo simulation shows a good fit for the photoluminescence peak energy positions in AlInGaN quaternary alloy with the temperature induced experimental unusual behavior (redshift-blueshift-redshift). The W-shaped temperature dependent inhomogeneities are observed for the PL line widths. The temperature induced S-shaped photoluminescence band peaks and W-shaped line width have been attributed to the change of exciton dynamics due to the Indium aggregated potentials and the exciton localization effects. These results could be important to understand the realistic optical properties of AlInGaN quaternary alloy based electronic and optoelectronic devices.

Ключевые слова:

AlInGaN, экситон, моделирование методом Монте-Карло, фотолюминесценция, температура

Благодарность:

Работа выполнена при финансовой поддержке программы научных исследований университета короля Абдул Азиза, Джидда, грант № 135-41-D1436. Настоящим авторы выражают глубокую благодарность указанной программе за техническую и финансовую поддержку.

Коды OCIS: 160.0160, 160.4670, 160.4760, 250.0250, 250.5230

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