Incorporation of sulfur vacancies in the ZnIn 2 S 4 photoanode for highly efficient photoelectrochemical water splitting and urea oxidation

We report a “one stone, two birds” strategy for highly efficient photoelectrochemical (PEC) performance by introducing sulfur vacancies (Sv) in a ZnIn 2 S 4 (ZIS) photoanode, which exhibits a superior photocurrent density of 2.18 mA cm −2 .