Kinetic modelling of intraband carrier relaxation in bulk and nanocrystalline lead-halide perovskites

Thomas R. Hopper, Ahhyun Jeong, Andrei A. Gorodetskya, Franziska Krieg, Maryna I. Bodnarchuk, Xiaokun Huang, Robert Lovrincic, Maksym V. Kovalenko & Artem A. Bakulin
The relaxation of high-energy “hot” carriers in semiconductors is known to involve the redistribution of energy between hot and cold carriers, as well as the transfer of energy from hot carriers to phonons. Over the past few years, these two processes have been identified in lead-halide perovskites (LHPs) using ultrafast pump–probe experiments, but their interplay is not fully understood. Here we present a practical and intuitive kinetic model that accounts for the effects of both...
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