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Journal Articles Physical Review Letters Year : 1996

Molecular Imaging and Local Density of States Characterization at the Si(111)/NaOH Interface

Abstract

We present in situ scanning tunneling microscopy (STM) images with the resolution of isolated ≡ Si — O X groups on H-Si(111) in NaOH solutions with or without isopropyl alcohol [ X = H or — CH ( CH 3 ) 2 ] . The comparison of STM with geometric contours shows that the electronegativity of OH ligands enhances the local density of states and generates a surface potential distribution. The dependence of both observations with the radical X and the mechanisms of grafting are discussed.
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hal-04413847 , version 1 (24-01-2024)

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Philippe Allongue. Molecular Imaging and Local Density of States Characterization at the Si(111)/NaOH Interface. Physical Review Letters, 1996, 77 (10), pp.1986-1989. ⟨10.1103/PhysRevLett.77.1986⟩. ⟨hal-04413847⟩
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