Enhancing redshift phenomenon in time-resolved photoluminescence spectra of AlGaN epilayer

Li Wei¹, Jin Peng^{2, †}, Wang Wei-Ying², Mao De-Feng², Pan Xu², Wang Xiao-Liang², Wang Zhan-Guo²

Temporal responses of the PL emission of Al_0.54Ga_0.46N epilayer over the energy range from 4.694 eV to 4.794 eV at 6 K. The inset shows the time-integrated PL spectra and the PL decay time as a function of emission energy for Al_0.54Ga_0.46N epilayer at 6 K.