%0 Journal Article
%A Fu, Shuai
%A Huang, Xing
%A Gao, Guoquan
%A St. Petkov, Petko
%A Gao, Wenpei
%A Zhang, Jianjun
%A Gao, Lei
%A Zhang, Heng
%A Liu, Min
%A Hambsch, Mike
%A Zhang, Wenjie
%A Zhang, Jiaxu
%A Li, Keming
%A Kaiser, Ute
%A Parkin, Stuart S. P.
%A Mannsfeld, Stefan
%A Zhu, Tong
%A Wang, Hai I.
%A Wang, Zhiyong
%A Dong, Renhao
%A Feng, Xinliang
%A Bonn, Mischa
%T Unveiling high-mobility hot carriers in a two-dimensional conjugated coordination polymer
%J Nature materials
%V XX
%@ 1476-1122
%C Basingstoke
%I Nature Publishing Group
%M PUBDB-2025-01623
%P 1
%D 2025
%Z online first
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%R 10.1038/s41563-025-02246-2
%U https://bib-pubdb1.desy.de/record/627840