[We-A2-D] Physics of halide perovskites

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[We-A2-D-01] Anti-Stokes Photoluminescence in Halide Perovskites: Energy Flow, Optical Cooling, and Quantum-Efficiency Metrology

〇Yasuhiro Yamada YAMADA¹, Arata TANAKA¹, Aomine TSUKISHIRO¹ (1. Chiba Univ. (Japan))

Metal halide perovskites exhibit efficient anti-Stokes photoluminescence, which enables optical cooling. We discuss its intrinsic Auger-limited upper bound, and how the same light–heat interconversion physics may enable near-unity photoluminescence quantum-efficiency metrology in semiconductors.