Polarization-State-Driven Band Engineering Enabling Mobility Bidirectional Modulation and Photodetection Enhancement in SnS 2 /In 2 Se 3 Heterostructures

-only devices. Therefore, we elucidate a unique interfacial modulation mechanism in 2D ferroelectric/semiconductor systems, providing a new strategy for the design of tunable, energy-efficient, high-sensitivity photodetectors and their imaging arrays.