Defect chemistry and semiconducting properties of titanium dioxide: II. Defect diagrams

T. Bak, Janusz Nowotny, M. Rekas, C. C. Sorrell

Research output: Contribution to journalArticlepeer-review

122 Citations (Scopus)

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 languageEnglish
Pages (from-to)1057-1067
Number of pages11
JournalJournal of Physics and Chemistry of Solids
Volume64
Issue number7
DOIs
Publication statusPublished - 1 Jul 2003
Externally publishedYes

Keywords

  • A. Electronic materials
  • D. Defects
  • D. Electrical conductivity
  • D. Electrical properties
  • D. Semiconductivity
  • D. Transport properties

Fingerprint

Dive into the research topics of 'Defect chemistry and semiconducting properties of titanium dioxide: II. Defect diagrams'. Together they form a unique fingerprint.

Cite this