TY - JOUR
T1 - Dependence on the deposition conditions in the adsorption of C6 H8 molecules on a Si (100) -2×1 surface
AU - D'Amico, F.
AU - Gunnella, R.
AU - Shimomura, M.
AU - Abukawa, T.
AU - Kono, S.
N1 - Copyright:
Copyright 2007 Elsevier B.V., All rights reserved.
PY - 2007/10/23
Y1 - 2007/10/23
N2 - We studied the molecular 1,4-cyclohexadiene (CHD) adsorption at room temperature on a Si (100) -2×1 surface, from the first stages up to saturation [about half a monolayer (ML)] at two different deposition rates. The chemical configuration of the adsorbed CHD on the silicon surface was obtained by valence band and C 1s core level photoemission analyses. Such a molecular adsorption, at the earlier stages and low rates, showed only weak features of chemical bonding with Si; at higher coverages (θ>0.3 ML) and higher deposition rates, a chemisorption occurred with an upright structure of the molecule, in which one out of the two unsaturated π orbitals reacted to form a bond with the silicon dimer. The whole investigation is based on an accurate determination of the strongly asymmetric C 1s core level components obtained by means of an angular resolved photoelectron diffraction analysis.
AB - We studied the molecular 1,4-cyclohexadiene (CHD) adsorption at room temperature on a Si (100) -2×1 surface, from the first stages up to saturation [about half a monolayer (ML)] at two different deposition rates. The chemical configuration of the adsorbed CHD on the silicon surface was obtained by valence band and C 1s core level photoemission analyses. Such a molecular adsorption, at the earlier stages and low rates, showed only weak features of chemical bonding with Si; at higher coverages (θ>0.3 ML) and higher deposition rates, a chemisorption occurred with an upright structure of the molecule, in which one out of the two unsaturated π orbitals reacted to form a bond with the silicon dimer. The whole investigation is based on an accurate determination of the strongly asymmetric C 1s core level components obtained by means of an angular resolved photoelectron diffraction analysis.
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U2 - 10.1103/PhysRevB.76.165315
DO - 10.1103/PhysRevB.76.165315
M3 - Article
AN - SCOPUS:35648983981
VL - 76
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 16
M1 - 165315
ER -