Abstract
The present work derives defect diagrams for titanium dioxide, TiO2, within a wide range of oxygen partial pressures involving the n-type regime, the p-type regime and the n-p transition regime in the range 973-1373 K. The non-stoichiometry and related defect disorder of TiO2 are considered in terms of defects in both sub-lattices involving: Oxygen sublattice: oxygen vacancies Ti sublattice: Ti vacancies and Ti interstitialsDefect diagrams are derived in terms of defects concentration (oxygen vacancies, tri- and four-valent Ti interstitials) as a function of oxygen partial pressure) at different levels of acceptor- and donor-type pre-imposed defects (Ti vacancies and foreign cations).
| Original language | English |
|---|---|
| Pages (from-to) | 1057-1067 |
| Number of pages | 11 |
| Journal | Journal of Physics and Chemistry of Solids |
| Volume | 64 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Jul 2003 |
| Externally published | Yes |
Keywords
- A. Electronic materials
- D. Defects
- D. Electrical conductivity
- D. Electrical properties
- D. Semiconductivity
- D. Transport properties