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

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[Tu-A1-D-05] Size-dependent exciton properties of individual halide perovskite nanocrystal quantum dots

〇Kenichi Cho¹, Takumi Yamada¹, Hirokazu Tahara¹, Masaki Saruyama¹, Ryota Sato¹, Toshiharu Teranishi¹, Yoshihiko Kanemitsu¹ (1. Kyoto Univ. (Japan))

Low-temperature single nanocrystal spectroscopy reveals size-dependent excited states in lead halide perovskite nanocrystals. We have found that trion and biexciton binding energies increase as the nanocrystal size decreases, while exciton–phonon coupling becomes stronger. These phenomena will be discussed in detail.