Preparation-Dependent Orientation of Crystalline Ice Islands on Ag(111)
| Autor: | Cord Bertram, Karsten Lucht, Sarah-Charlotta Heidorn, Karina Morgenstern |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Condensed matter physics Annealing (metallurgy) Bilayer Nucleation 02 engineering and technology Surface finish 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films law.invention Crystallography law 0103 physical sciences Materials Chemistry Dewetting Physical and Theoretical Chemistry Crystallization 010306 general physics 0210 nano-technology Wetting layer |
| Zdroj: | The Journal of Physical Chemistry B. 122:479-484 |
| ISSN: | 1520-5207 1520-6106 |
| DOI: | 10.1021/acs.jpcb.7b03431 |
| Popis: | We observe the transformation of fractal ice islands grown at 96 K to compact ones annealed at 118 K and compare those to compact islands grown directly at 118 K. The low-temperature grown islands form a four bilayer high wetting layer. The annealing causes a crystallization and reshaping of the islands and a substantial increase in height and roughness in particular at higher coverage. Moreover, it leads to a dewetting of the ice film. The islands grown at the higher temperature show qualitative similarities to the annealed ones at smaller nucleation density. However, their orientation with respect to the surface differs by 30° as compared to the annealed islands. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|