Abstract
The thicknesses of oxide films formed in aqueous borate solutions were obtained by the spectrophotometric method after developing the interference colors by evaporating a very thin film of gold or bismuth onto the oxide. The refractive index of the stripped films was determined by the Becke immersion method as 1.57 to 1.58 at 5 900 Å wavelength. The dielectric constant was estimated as 9.8 ± 0.5. Experimental data on the steady state ionic current density, I, through the oxide as a function of the field strength, E, in the oxide could be represented by I = I0 exp −(W − qaE)/kT where I0 = 2.24 × 107 A cm−2, W = 1.3 ± 0.15 eV, q = 3e, a = 2.95 ± 0.15 Å.
Publisher
Canadian Science Publishing
Subject
Organic Chemistry,General Chemistry,Catalysis
Cited by
160 articles.
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