TY  - JOUR
AU  - Fu, Shuai
AU  - Huang, Xing
AU  - Gao, Guoquan
AU  - St. Petkov, Petko
AU  - Gao, Wenpei
AU  - Zhang, Jianjun
AU  - Gao, Lei
AU  - Zhang, Heng
AU  - Liu, Min
AU  - Hambsch, Mike
AU  - Zhang, Wenjie
AU  - Zhang, Jiaxu
AU  - Li, Keming
AU  - Kaiser, Ute
AU  - Parkin, Stuart S. P.
AU  - Mannsfeld, Stefan
AU  - Zhu, Tong
AU  - Wang, Hai I.
AU  - Wang, Zhiyong
AU  - Dong, Renhao
AU  - Feng, Xinliang
AU  - Bonn, Mischa
TI  - Unveiling high-mobility hot carriers in a two-dimensional conjugated coordination polymer
JO  - Nature materials
VL  - XX
SN  - 1476-1122
CY  - Basingstoke
PB  - Nature Publishing Group
M1  - PUBDB-2025-01623
SP  - 1
PY  - 2025
N1  - online first
AB  - 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.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1038/s41563-025-02246-2
UR  - https://bib-pubdb1.desy.de/record/627840
ER  -