Scanning Tunneling Microscopy of Endohedral Metallofullerene Tb@C82 on C60 Film and Si(100) 2 × 1 Surface
| Autor: | Shihe Yang, Bo-Rong Shi, Houjin Huang, Nelson Cue, Xue-sen Wang, Wener Heiland |
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| Rok vydání: | 2001 |
| Předmět: |
Materials science
Nucleation Surfaces Coatings and Films law.invention Crystallography chemistry.chemical_compound Dipole Adsorption chemistry Highly oriented pyrolytic graphite law Monolayer Metallofullerene Materials Chemistry Molecule Physical and Theoretical Chemistry Scanning tunneling microscope |
| Zdroj: | The Journal of Physical Chemistry B. 105:11414-11418 |
| ISSN: | 1520-5207 1520-6106 |
| DOI: | 10.1021/jp0117112 |
| Popis: | Endohedral metallofullerene Tb@C82 molecules adsorbed on the C60 film and Si(100) 2 × 1 have been investigated by scanning tunneling microscopy (STM). The C60 film was obtained by depositing 2−3 monolayers (ML) of C60 molecules on a highly oriented pyrolytic graphite (HOPG) surface. Tb@C82 molecules have great mobility and aggregate along the edges of terraces on the C60 film, and form a close-packing monolayer with increasing coverage. Very few trimers or dimers were imaged on the surface of C60 film. In contrast, the Tb@C82 molecules were randomly distributed on the surface of Si(100). These nucleation behaviors of Tb@C82 molecules can be explained by the interaction of Tb@C82−Si and Tb@C82−Tb@C82 that were brought on by the permanent dipole moment of Tb@C82 molecules. |
| Databáze: | OpenAIRE |
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