5 papers
Suppressed excitonic effects enable high mobility, high-yield photoconductivity in a two-dimensional polymer crystal with axial pyridine coordination
Shuai Fu, Ye Yang, Guoquan Gao +8
Two-dimensional polymers (2DPs) and their layer-stacked covalent organic frameworks (2D COFs) offer modular, atomically precise platforms for organic optoelectronics, yet their pho…
Temperature- and charge carrier density-dependent electronic response in methylammonium lead iodide
Jiacheng Wang Jungmin Park, Lei Gao, Lucia Di Virgilio +8
Understanding carrier dynamics in photoexcited metal-halide perovskites is key for optoelectronic devices such as solar cells (low carrier densities) and lasers (high carrier densi…
Spontaneous Surface Charging and Janus Nature of the Hexagonal Boron Nitride-Water Interface
Yongkang Wang, Haojian Luo, Xavier R. Advincula +14
Boron, nitrogen and carbon are neighbors in the periodic table and can form strikingly similar twin structures-hexagonal boron nitride (hBN) and graphene-yet nanofluidic experiment…
Beyond the band edge: Unveiling high-mobility hot carriers in a two-dimensional conjugated coordination polymer
Shuai Fu, Xing Huang, Guoquan Gao +19
Hot carriers, inheriting excess kinetic energy from high-energy photons, underpin numerous optoelectronic applications involving non-equilibrium transport processes. Current resear…
The Effect of Charge Carrier Cooling on the Ultrafast Carrier Dynamics in CsAgBiBr Thin Films
Huygen J. Jobsis, Lei Gao, Antti-Pekka M. Reponen +5
CsAgBiBr shows promise for solution-processable optoelectronics, such as photovoltaics, photocatalysis and X-ray detection. However, various spectroscopic studies report ra…