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On the Electrical Properties of Nearly Stoichiometric Rutile Single Crystals (TiO 2 )
Author(s) -
Cardon F.
Publication year - 1963
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19630030814
Subject(s) - rutile , conductivity , polarization (electrochemistry) , materials science , space charge , electrode , stoichiometry , electrolyte , electrical resistivity and conductivity , condensed matter physics , analytical chemistry (journal) , chemical physics , chemistry , electrical engineering , physics , engineering , electron , organic chemistry , quantum mechanics , chromatography
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.