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Scanning tunneling microscopy/spectroscopy study of adsorption of C60F36 molecules on the 7 × 7-Si(111) surface

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Abstract

Spatially resolved images of an individual C60F36 fluorofullerene molecules on Si(111)-7 × 7 surface have been obtained by means of scanning tunneling microscopy/spectroscopy (STM/STS). The presence of isomers with different symmetry (T, C 3, C 1) has been revealed in STM investigation of initial adsorption stage of C60F36 on silicon surface Si(111)-(7 × 7). The adsorbed fluorofullerene molecule can occupy any adsorption site of silicon surface (corner site, faulted half, unfaulted half) that indicates for strong molecule-substrate interaction. The HOMO-LUMO gap of the adsorbed C60F36 molecules have been estimated from current image tunneling spectroscopy (CITS) and z(V) with engaged feedback measurements. The value of HOMO-LUMO gap observed experimentally was 3 eV. The C60F36 molecules adsorption on Si(111)-(7 × 7) surface was stable and kept equilibrium configuration during several hours.

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Authors and Affiliations

  1. Department of Physics, Moscow State University, Moscow, 119991, Russia

    A. I. Oreshkin, V. N. Mantsevich, S. I. Oreshkin, S. V. Savinov & V. I. Panov

  2. Department of Physical Electronics, Bashkir State University, Ufa, 450074, Russia

    R. Z. Bakhtizin

  3. Sternberg Astronomical Institute, Moscow State University, Moscow, 119991, Russia

    S. I. Oreshkin

Authors
  1. A. I. Oreshkin
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  2. R. Z. Bakhtizin
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  3. V. N. Mantsevich
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  4. S. I. Oreshkin
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  5. S. V. Savinov
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  6. V. I. Panov
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Correspondence to A. I. Oreshkin.

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Oreshkin, A.I., Bakhtizin, R.Z., Mantsevich, V.N. et al. Scanning tunneling microscopy/spectroscopy study of adsorption of C60F36 molecules on the 7 × 7-Si(111) surface. Jetp Lett. 95, 666–669 (2012). https://doi.org/10.1134/S0021364012120119

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  • DOI: https://doi.org/10.1134/S0021364012120119

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