Electrical conductivity of TiO₂ within n–p transition Part II – Electrical conductivity components

Abstract

The present paper reports the electrical properties of undoped TiO₂ single crystal in terms of the conductivity components for electrons, holes and ions and the related transference numbers within the n–p transition regime. These data indicate that ionic conductivity in TiO₂ may assume a substantial value, which cannot be ignored. The minimum of the electrical conductivity at the n–p transition and its electronic component, were used for the determination of the band gap, which is 3·13 and 3·1 eV respectively.

Keywords:

• TITANIUM DIOXIDE
• ELECTRICAL PROPERTIES
• DEFECT DISORDER
• BAND GAP