Electrical properties and defect chemistry of indium-doped TiO2 : electrical conductivity

摘要: Fujishima and Honda 1 first reported the application of titanium dioxide, TiO2 (rutile) as a photoelectrode for light-induced water oxidation. This report resulted in intensive studies aiming at enhancement performance solar-to-chemical energy conversion through wide range processing procedures. These include incorporation aliovalent ions (forming either donors or acceptors), imposition small metallic oxide surface islets so called co-catalysts) formation nanostructures different size shapes. 2–6 A common view is that compounds solar depends on crystalline structure chemical composition. 7–9 Therefore, most commonly applied approach modification solid solutions composites. 2,10–16 Awareness growing solids involve lattice imperfections (defects), which have substantial impact properties. 17 knowledge effect defect disorder properties essential semiconductors with enhanced conversion. In other words, may be imposed within single phase by its disorder. research strategy systems maximized should take into account there close relationship between this respect awareness materials are compatible only when oxygen activity lattice, related disorder, same. ascertainment has strong determination experimental data metal oxides to well defined reproducible. Defect chemistry defect-related Kroger 18 Kofstad. 19 The theory can defects thermodynamically reversible, such point defects. summary, offers novel development desired specific using engineering. models derived properties, electrical conductivity. program authors, aims conversion, an accumulation showing engineering promising high-performance photoelectrodes