On the Electrical Properties of Nearly Stoichiometric Rutile Single Crystals (TiO2)

✍ Scribed by F. Cardon

• Publisher: John Wiley and Sons
• Year: 1963
• Tongue: English
• Weight: 355 KB
• Volume: 3
• Category: Article
• ISSN: 0370-1972
• DOI: 10.1002/pssb.19630030814

✦ Synopsis

Abstract

Measurements are made of the current‐voltage‐time characteristics of etched, and unetched, TiO~2~ single crystals, with and without illumination through a transparent gold electrode. These results allow certain deductions to be made concerning the relation between space‐charge‐limited currents, polarization phenomena and the conductivity changes inducted by the applied field.

It is shown that the polarization phenomena and observed I ∼ V^2^ characteristics must be ascribed to effects in sub‐surface regions. A small amount of electrolytic conductivity together with certain reactions with the electrode are considered to be the origin of the conductivity changes.