[9p-E218-1~16] 13.8 Optical properties and light-emitting devices

4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)

[9p-E218-13] Wavefunction analysis of closely stacked quantum dots under a potential gradient

〇Yuto Yamaoka¹, Noriyuki Taoka¹, Wakana Takeuchi¹, Takeyoshi Sugaya², Keshiro Goshima¹ (1.AIT, 2.AIST)

Keywords:

quantum dot,wavefunction analysis

Quantum dot lasers have attracted attention as low-threshold and high-efficiency light sources. However, structural degradation due to strain accumulation remains a critical issue in stacked quantum dot structures. In this study, closely stacked quantum dots were analyzed using the Schrödinger equation based on the effective mass approximation with COMSOL Multiphysics, evaluating electron and hole wave functions under an applied potential gradient. The influence of the potential gradient on the localization behavior of electron and hole wave functions was clarified.