6533b832fe1ef96bd129af01
RESEARCH PRODUCT
Scanning tunneling microscopy and spectroscopy of Mo clusters grown on TiO2(110).
M. PetukhovBruno DomenichiniSylvie BourgeoisGian Andrea RizziGaetano Granozzisubject
SURFACEAnnealing (metallurgy)Schottky barrierScanning tunneling spectroscopyAnalytical chemistrychemistry.chemical_element02 engineering and technologyGrowth01 natural scienceslaw.inventionX-ray photoelectron spectroscopylaw0103 physical sciencesmorphologyMaterials ChemistryCluster (physics)GOLD010306 general physicsSpectroscopyroughnessMolybdenumNANOPOROUS TIO2 FILMSTitanium oxideScanning tunnelling spectroscopiesSurface structureSurfaces and Interfaces021001 nanoscience & nanotechnologyCondensed Matter PhysicsSurfaces Coatings and FilmsCrystallographyScanning tunnelling microscopyand topographychemistryMolybdenumScanning tunneling microscope0210 nano-technologydescription
Molybdenum was deposited in two steps (3 eq. ML and 1 eq. ML) on the light blue rutile TiO2 10) (1 x 1) surface at room temperature, each Mo deposition cycle being followed by an annealing up to 950-1000 K. This procedure was found to lead to formation of separated clusters having a size in very wide range (1-20 nm). Scanning tunneling microscopy showed a dependence of the cluster morphology as a function of the size. The scanning tunneling spectra of Mo clusters was studied as a function of cluster dimensions and discussed in comparison with photoelectron spectroscopy results previously obtained for homogeneous Mo films. The dI/d V curves do not display the valence band structure of deposited material, which could be explained by the Schottky barrier formation. (C) 2007 Elsevier B.V. All rights reserved.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-09-01 |