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@ARTICLE{Fu:627840,
author = {Fu, Shuai and Huang, Xing and Gao, Guoquan and St. Petkov,
Petko and Gao, Wenpei and Zhang, Jianjun and Gao, Lei and
Zhang, Heng and Liu, Min and Hambsch, Mike and Zhang, Wenjie
and Zhang, Jiaxu and Li, Keming and Kaiser, Ute and Parkin,
Stuart S. P. and Mannsfeld, Stefan and Zhu, Tong and Wang,
Hai I. and Wang, Zhiyong and Dong, Renhao and Feng, Xinliang
and Bonn, Mischa},
title = {{U}nveiling high-mobility hot carriers in a two-dimensional
conjugated coordination polymer},
journal = {Nature materials},
volume = {XX},
issn = {1476-1122},
address = {Basingstoke},
publisher = {Nature Publishing Group},
reportid = {PUBDB-2025-01623},
pages = {1},
year = {2025},
note = {online first},
abstract = {Hot carriers, inheriting excess kinetic energy from
high-energy photons, drive numerous optoelectronic
applications reliant on non-equilibrium transport processes.
Although extensively studied in inorganic materials, their
potential in organic-based systems remains largely
unexplored. Here we demonstrate highly mobile hot carriers
in crystalline two-dimensional conjugated coordination
polymer Cu3BHT (BHT, benzenehexathiol) films. Leveraging a
suite of ultrafast spectroscopic and imaging techniques, we
map the microscopic charge transport landscape in Cu3BHT
films following non-equilibrium photoexcitation across
temporal, spatial and frequency domains, revealing two
distinct high-mobility transport regimes. In the
non-equilibrium regime, hot carriers achieve an ultrahigh
mobility of ~2,000 cm2 V–1 s–1, traversing grain
boundaries up to ~300 nm within a picosecond. In the
quasi-equilibrium regime, free carriers exhibit Drude-type,
band-like transport with a remarkable mobility of
~400 cm2 V–1 s–1 and an intrinsic diffusion length
exceeding 1 μm. These findings position two-dimensional
conjugated coordination polymers as versatile platforms for
advancing organic-based hot carrier applications.},
cin = {FS DOOR-User},
ddc = {610},
cid = {$I:(DE-H253)FS_DOOR-User-20241023$},
pnm = {6G3 - PETRA III (DESY) (POF4-6G3) / FS-Proposal: I-20230095
(I-20230095)},
pid = {G:(DE-HGF)POF4-6G3 / G:(DE-H253)I-20230095},
experiment = {EXP:(DE-H253)P-P08-20150101},
typ = {PUB:(DE-HGF)16},
doi = {10.1038/s41563-025-02246-2},
url = {https://bib-pubdb1.desy.de/record/627840},
}