Defect chemistry and defect engineering of TiO2-based semiconductors for solar energy conversion

摘要: This tutorial review considers defect chemistry of TiO2 and its solid solutions as well defect-related properties associated with solar-to-chemical energy conversion, such Fermi level, bandgap, charge transport surface active sites. Defect disorder is discussed in terms reactions the related compensation. equilibria are used derivation diagrams showing effect oxygen activity temperature on concentration both ionic electronic defects. These may be for imposition desired semiconducting that needed to maximize performance TiO2-based photoelectrodes generation solar hydrogen fuel using photo electrochemical cells (PECs) photocatalysts water purification. The semiconductors considered key performance-related (KPPs) related. It shown engineering applied optimization KPPs order achieve optimum performance.