[Tu-A1-D] Quantum dots and low-dimensional perovskites

10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)

[Tu-A1-D-06] Halide-Exchange Mechanism Probed by Exciton Relaxation Dynamics in Hetero-
Multilayer Films of Different-Halide Perovskite Nanocrystals

〇Yuto Kajino¹, Nobuaki Matsui¹, Yukiko Aida¹, Yusuke Arima¹, Kaoru Tamada¹ (1. Kyushu Univ. (Japan))

Halide exchange in perovskite nanocrystals is important for emerging light-emitting devices, yet its dynamic evolution remains unclear. We employed time-resolved photoluminescence spectroscopy of hetero-multilayer films and revealed that the exchange pathway involves defect evolution and changes in radiative recombination.