Ontology highlight
ABSTRACT:
SUBMITTER: Zhang H
PROVIDER: S-EPMC9841606 | biostudies-literature | 2023 Jan
REPOSITORIES: biostudies-literature
Zhang Heng H Debroye Elke E Vina-Bausa Beatriz B Valli Donato D Fu Shuai S Zheng Wenhao W Di Virgilio Lucia L Gao Lei L Frost Jarvist M JM Walsh Aron A Hofkens Johan J Wang Hai I HI Bonn Mischa M
ACS energy letters 20221208 1
Large polarons are known to form in lead halide perovskites (LHPs). Photoinduced isolated polarons at low densities have been well-researched, but many-body interactions at elevated polaron densities, exceeding the Mott criterion (i.e., Mott polaron density), have remained elusive. Here, employing ultrafast terahertz spectroscopy, we identify a stable Mott polaron state in LHPs at which the polaron wavefunctions start to overlap. The Mott polaron density is determined to be ∼10<sup>18</sup> cm<s ...[more]