TY - JOUR
T1 - Chemisorption of azafullerene on silicon
T2 - 3rd International Conference on Low Dimensional Structures and Devices (LDSD'99)
AU - Butcher, M. J.
AU - Jones, F. H.
AU - Cotier, B. N.
AU - Taylor, M. D.R.
AU - Moriarty, P.
AU - Beton, P. H.
AU - Prassides, K.
AU - Tagmatarchis, N.
AU - Comicioli, C.
AU - Ottaviani, C.
AU - Crotti, C.
N1 - Funding Information:
We thank the UK Engineering and Physical Sciences Research Council (EPSRC) for financial support. The experiments at ELETTRA were funded under the EU Large Scale Facilities Programme. We gratefully acknowledge M. Pedio for both supplying a copy of [9] before publication and useful discussion.
PY - 2000/5/1
Y1 - 2000/5/1
N2 - We find that C59N exists as a monomer on Si(111) and Si(100) surfaces, in contrast to the dimerized state ((C59N)2) it adopts in the bulk azafullerene solid. A combination of scanning tunnelling microscopy, photoelectron spectroscopy and X-ray absorption measurements indicates that, as for C60, the chemical bond between C59N and the Si(111)-(7×7) surface involves the formation of covalent Si-C bonds. We argue that the strong C59N-surface interaction on both Si(111) and Si(100) precludes molecular diffusion and thus prohibits the formation of dimers. The dominant role of molecule-surface, as opposed to intermolecular interactions is confirmed by scanning tunnelling microscope-based molecular manipulation experiments.
AB - We find that C59N exists as a monomer on Si(111) and Si(100) surfaces, in contrast to the dimerized state ((C59N)2) it adopts in the bulk azafullerene solid. A combination of scanning tunnelling microscopy, photoelectron spectroscopy and X-ray absorption measurements indicates that, as for C60, the chemical bond between C59N and the Si(111)-(7×7) surface involves the formation of covalent Si-C bonds. We argue that the strong C59N-surface interaction on both Si(111) and Si(100) precludes molecular diffusion and thus prohibits the formation of dimers. The dominant role of molecule-surface, as opposed to intermolecular interactions is confirmed by scanning tunnelling microscope-based molecular manipulation experiments.
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U2 - 10.1016/S0921-5107(99)00562-0
DO - 10.1016/S0921-5107(99)00562-0
M3 - Conference article
AN - SCOPUS:0033739149
VL - 74
SP - 202
EP - 205
JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
SN - 0921-5107
IS - 1
Y2 - 15 September 1999 through 17 September 1999
ER -