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Solution–TiO2 Interface Probed by Frequency-Modulation Atomic Force Microscopy

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Published 20 August 2009 Copyright (c) 2009 The Japan Society of Applied Physics
, , Citation Takumi Hiasa et al 2009 Jpn. J. Appl. Phys. 48 08JB19 DOI 10.1143/JJAP.48.08JB19

1347-4065/48/8S2/08JB19

Abstract

The topography and solvation structure of a solution–TiO2 interface were observed in the dark using highly sensitive, frequency-modulated atomic force microscopy (FM-AFM). The nucleation and growth of an ionic solute, KCl, in this study, were observed in constant frequency-shift topography. The force applied to the tip was determined as a function of tip–surface distance. Modulations were identified on some force curves and were found to be related to the site-specific density of water molecules.

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