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Lead Halide Perovskites: Uncovering the Electron‐Phonon Interplay and Dynamical Energy‐Dissipation Mechanisms of Hot Carriers in Hybrid Lead Halide Perovskites (Adv. Energy Mater. 9/2021)
Author(s) -
Chan Christopher C. S.,
Fan Kezhou,
Wang Han,
Huang Zhanfeng,
Novko Dino,
Yan Keyou,
Xu Jianbin,
Choy Wallace C. H.,
Lončarić Ivor,
Wong Kam Sing
Publication year - 2021
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.202170036
Subject(s) - materials science , halide , phonon , perovskite (structure) , polaron , condensed matter physics , dissipation , bottleneck , charge carrier , lead (geology) , coupling (piping) , chemical physics , electron , optoelectronics , physics , thermodynamics , chemistry , inorganic chemistry , composite material , quantum mechanics , geomorphology , geology , computer science , embedded system , crystallography
In article number 2003071, Kam Sing Wong and co‐workers quantify electron‐phonon coupling strength using a simplified two‐temperature model in several hybrid lead halide perovskites. Also, the intricate competition of hot‐carrier cooling mechanisms between large polaron screening and hot‐phonon bottleneck effect are described by unveiling an S‐shaped temperature versus carrier density relationship. The findings are expected to help shed light on hot‐carrier harvesting in high‐performance photovoltaic applications.