Designing type-II p-SiCC 4 /XO (X = Sn, Pb) van der Waals heterojunctions with a built-in electric field as promising photocatalysts for highly efficient overall water splitting

Auxetic type-II p-SiCC 4 /XO (X = Sn, Pb) heterojunctions exhibit a strong built-in electric field that enables long radiation lifetime of interlayer excitons and almost spontaneous efficient solar-driven water splitting.