[18p-WL2_201-1~13] 3.11 Nanoscale optical science and near-field optics

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[18p-WL2_201-4] Dynamics of perovskite nano-light source generation by a focused electron beam

〇Kanta Hirai¹, Masato Inamata², Midori Ikeuchi³, Hidehiro Yamashita³, Hikaru Saito³ (1.Kyushu Univ., 2.IGSES, Kyushu Univ., 3.IMCE, Kyushu Univ.)

Keywords:

Nano-Light Source,Electron Beam Irradiation,Halide Perovskite

In this study, to elucidate the growth behavior of CsPbBr₃ nanoparticles induced by focused electron beam irradiation on Cs₄PbBr₆, focused electron beams were applied to Cs₄PbBr₆ crystal grains for varying durations and analyzed using Electron Energy Loss Spectroscopy (EELS). The thickness maps of CsPbBr₃ calculated from EELS mapping revealed distinct growth behaviors between the in-plane and thickness directions. These results indicate that controlling the formation of CsPbBr₃ nanoparticles by focused electron beam irradiation requires a multifaceted evaluation that accounts for the growth dynamics in each respective direction.