Energy exchange between atoms with a quartz crystal μ-balance
| Autor: | Milena Guevara-Bertsch, Andrés Chavarría-Sibaja, O. A. Herrera-Sancho, Alejandro Godínez-Sandí |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Condensed Matter - Materials Science
Photoluminescence Materials science Oscillation Evaporation General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Molecular physics Physics - Atomic Physics Crystal Physical vapor deposition Desorption 0103 physical sciences Surface layer 010306 general physics 0210 nano-technology Quartz |
| Zdroj: | New Journal of Physics. 20:123001 |
| ISSN: | 1367-2630 |
| DOI: | 10.1088/1367-2630/aaf117 |
| Popis: | We propose an experimental method to fully characterize the energy exchange of particles during the physical vapor deposition process of thin surface layers. Our approach is based on the careful observation of perturbations of the oscillation frequency of a Quartz Crystal $\mu$-balance induced by the particles interaction. With this technique, it is possible to measure the momentum exchange of the atoms during the evaporation process and determine the ideal evaporation rate for an uniform energy distribution. We are able to follow the desorption dynamics of particles immediately after the first layers have been formed. These results are in close relation to the surface binding energy of the evaporated material, they offer a better control to obtain the desired properties of the thin surface layer. We applied our technique to investigate the physical vapor evaporation process for diverse elements, usually implemented in the development of film surface layers, such as Cu, W, Au, Gd and In, and confirm that our results are in agreement with measurements done previously with other techniques such as low-temperature photoluminescence. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|