Haofei Shi

Transient Hydrogen-Manipulated Nonequilibrium Kinetics of Abnormal Grain Growth for Single-Crystal Copper Foils

Abstract Single-crystal copper foil is a distinguished material for electrical transmission, thermal conduction, and two-dimensional material epitaxy. However, the speed of producing a large-area single-crystal copper foil by annealing polycrystalline copper is limited by slow nu...

Ultrahigh Polarization Sensitivity via Bias‐Modulable Twisted Heterojunction Photodetectors With AoLP Detection and Polarity Reversal

ABSTRACT Polarization‐sensitive photodetection provides a critical degree of freedom for multidimensional optical information processing; however, achieving both high polarization selectivity and direct extraction of the angle of linear polarization (AoLP) within a single compact...

Graphene‐Engineered Rear Interfaces Enable Efficient Flexible CZTSSe Solar Cells on Metal Foils

ABSTRACT Flexible kesterite (S,Se) (CZTSSe) solar cells on metal foils are attractive for lightweight and conformable photovoltaic applications, yet their efficiencies remain significantly lower than those of rigid devices due to severe foil‐induced rear‐interface losses during h...