Observation of "Intrinsic" Surface States at the Ti—Aqueous-Electrolyte Interface by Sub—Band-Gap Electroreflectance Spectroscopy
- 7 February 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 50 (6), 443-446
- https://doi.org/10.1103/physrevlett.50.443
Abstract
Surface states were detected with sub—band-gap electroreflectance spectroscopy in the presence of electrolytes that can adsorb on the surface of Ti. The energy of these states is located 1.3 eV below the conduction band and they can be detected only in the weak accumulation mode. The potential distribution at the interface as a function of the electrolyte was investigated by impedance spectroscopy. These results were interpreted in terms of "intrinsic" surface states of the unsolvated surface.
Keywords
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