Interlayer charge-transfer states in SnS2/InSe Van der Waals heterostructures realizing mid-infrared photodetection
Two-dimensional (2D) van der Waals (vdWs) heterostructures offer a versatile platform where engineered interlayer coupling enables optical processes beyond those of individual materials. Their atomically sharp interfaces support charge-transfer states, directional carrier transport, and broadband light-matter inter...