About the book
Perovskite materials are a very important class of materials for various applications in the field of material science. In general, perovskite-structured compounds, (ABO3), including layer-type perovskites, Ruddlesden–Popper phase, Aurivillius oxides, and composites type (SrTiO3/Fe3O4, SrTiO3/Cu2O, Ag3PO4/SrTiO3 and CdS/SrTiO3) systems have been used as photocatalysts in the degradation of organic pollutants and water-splitting. Many of them are titanium-based perovskites owing to their matching bandgap, excellent catalytic activity, high chemical and photostability. The bandgap energies of the titanium-based perovskites range between 2 – 4.5 eV, covering that of the visible light region. Nevertheless, most of these are bulk-type materials, generally associated with low surface area and pore size. Some cation- or anion-doped perovskites have been demonstrated to give reasonable to high-efficiency degradation of dyes under visible light irradiation. Even though, inorganic-organic perovskite materials with varying in halide ions are used in solar cells as active layer with different hole transporting materials and electron transporting layers are fabricated in solar cell devices.