Formation of CaF2nanostructures on Si(001)
| Autor: | Luca Pasquali, Stefano Nannarone, Sergio D'Addato, N. S. Sokolov, S. M. Suturin, G. Selvaggi, Hans Zogg |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Nanostructure
Materials science Mechanical Engineering Physics::Optics Bioengineering General Chemistry Electronic structure Epitaxy Condensed Matter::Materials Science Crystallography epitaxial growth CaF2 nanostructures Si(001) Electron diffraction Mechanics of Materials Chemical physics Metastability General Materials Science Electrical and Electronic Engineering Spectroscopy Ultraviolet photoelectron spectroscopy Wetting layer |
| Zdroj: | Nanotechnology. 12:403-408 |
| ISSN: | 1361-6528 0957-4484 |
| DOI: | 10.1088/0957-4484/12/4/302 |
| Popis: | Initial stages of epitaxial growth and formation of CaF2 nanostructures on Si(001) were studied. A variety of nanostructures were grown including ultrathin two-dimensional layers at 750 °C, quasi-one-dimensional stripes at 650 °C and well-ordered dots at lower growth temperatures. Atomic force microscopy and reflection high-energy electron diffraction were used to measure the nanostructure shape and lattice orientation. The evolution of the surface electronic structure under different growth conditions was studied by ultraviolet photoelectron spectroscopy and metastable de-excitation spectroscopy. The leading role of the wetting layer in high-temperature formation of the fluorite-silicon interface was established. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|