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In Situ Infrared Observation of Hydrogenation, Oxidation, And Adsorption On Silicon Surfaces in Solutions

  • Yoshihiro Sugita (a1) and Satoru Watanabe (a1)


Fourier transform infrared attenuated total reflection method was employed to observe Si surfaces during wet chemical treatments. We observed the time evolution of the surface chemical structure during the oxidizing of hydrogenated Si surfaces in such oxidants as ozonized water and hydrogen peroxide using (100) and (111) surfaces. We also examined the adsorption of surfactants which were introduced in an HF solution. The interaction of adsorbates at the interface and with molecules in a liquid phase was discussed based on our in situ observations.



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