“…3,4 Tremendous efforts have been devoted to develop various materials to achieve a higher power conversion efficiency. 5,6 Ever since its beginning, various inorganic semiconductors and semiconductor oxides have been highly exploited, for example, CdS, ZnS, PbS, TiO 2 , and ZnO. [7][8][9] Subsequently, inorganic heterojunctions are flourishing because appropriate alignment of particular semiconductors may produce enhanced PEC properties.…”