TY - JOUR
T1 - Chemisorption of chlorine on Si(111) 7 × 7 and 1 × 1 surfaces
AU - Pandey, K. C.
AU - Sakurai, T.
AU - Hagstrum, H. D.
PY - 1977
Y1 - 1977
N2 - Using ultraviolet photoemission spectroscopy (UPS) in conjunction with theoretical calculations, we have studied the reaction of gaseous chlorine with Si(111) 7 × 7 and 1 × 1 surfaces. The UPS spectra of the two chlorine saturated surfaces are very similar and consist of four peaks, a sharp main peak at -10.7 eV and smaller ones at -7.5, -13.0, and -15.7 eV relative to vacuum level. Both the peak positions and their relative intensities are in quantitative agreement with a theoretical calculation for a structural model in which a single chlorine atom sits on top of each surface Si atom, indicating that Cl2 decomposes at the surface to make strong covalent bonds with Si.
AB - Using ultraviolet photoemission spectroscopy (UPS) in conjunction with theoretical calculations, we have studied the reaction of gaseous chlorine with Si(111) 7 × 7 and 1 × 1 surfaces. The UPS spectra of the two chlorine saturated surfaces are very similar and consist of four peaks, a sharp main peak at -10.7 eV and smaller ones at -7.5, -13.0, and -15.7 eV relative to vacuum level. Both the peak positions and their relative intensities are in quantitative agreement with a theoretical calculation for a structural model in which a single chlorine atom sits on top of each surface Si atom, indicating that Cl2 decomposes at the surface to make strong covalent bonds with Si.
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U2 - 10.1103/PhysRevB.16.3648
DO - 10.1103/PhysRevB.16.3648
M3 - Article
AN - SCOPUS:0041075141
SN - 0163-1829
VL - 16
SP - 3648
EP - 3651
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 8
ER -