Amorphous ZnWO4/CuIn4S6.5 with Intrinsic Sulfur Vacancies: Urbach Tail-Modulated Anomalous Charge Transfer toward Efficient Photocatalytic H2 Evolution.
Amorphous semiconductors feature intrinsic lattice disorder and abundant defect states, conventionally regarded as detrimental to photogenerated charge separation and photocatalysis. Nevertheless, lattice symmetry breaking in amorphous systems induces local dipole polarization and prominent Urbach tail band-edge states...