Concluding Remarks. The formula TiO2 is not reflective
of the complex composition of this nonstoichiometric compound
that involves a wide range of ionic and electronic point defects
that impact its properties. The real chemical formula of TiO2
may be derived from defect disorder diagrams.
The concept of defect engineering is based on the imposition
of desired properties by controlled combination of the concentrations
of lattice species, which are a function of the following