Presentation Information

5:30 PM - 5:45 PM JST(8:30 AM - 8:45 AM UTC)

[15p-W2_401-14]Evaluation of Recombination Dynamics Inhomogeneity in InGaN Quantum Wells by Time-Resolved Photoluminescence Lifetime Distribution Analysis

〇Kazunori Iwamitsu¹, Itsuki Shimbo², Zentaro Akase¹, Toshiya Yokogawa¹, Atsushi Yamaguchi², Shigetaka Tomiya¹ (1.NAIST, 2.Kanazawa Inst. of Tech.)

Keywords:

Time-Resolved Photoluminescence,Stretched Exponential,Lifetime Distribution Analysis

In this study, the time-resolved photoluminescence (TRPL) decay in an InGaN quantum well (QW) was analyzed using stretched (SE; β<1) and compressed (CE; β>1) exponential functions, and the physical meaning of the shape parameter β was examined. The SE behavior (β<1) is suggested to originate from quasi-static recombination processes governed by the lifetime distribution, whereas the CE behavior (β>1) likely reflects nonstationary processes involving carrier redistribution. These results indicate that β can serve as a useful indicator for characterizing the nature of recombination dynamics.

Back to Session information