| Autor: |
Noack, Johannes, Scheurell, Kerstin, Kemnitz, Erhard, Garcia-Juan, Plácido, Rau, Helge, Lacroix, Marc, Eicher, Johannes, Lintner, Birgit, Sontheimer, Thomas, Hofmann, Thomas, Hegmann, Jan, Jahn, Rainer, Löbmann, Peer |
| Přispěvatelé: |
Publica |
| Jazyk: |
angličtina |
| Rok vydání: |
2012 |
| Předmět: |
|
| Popis: |
Magnesium fluoride sols for the wet chemical processing of porous MgF2 antireflective coatings were prepared by the reaction of MgCl 2 with HF. The formation and crystallisation of MgF 2 nanoparticles were followed by 19F NMR spectroscopy, X-ray diffraction (XRD) and dynamic light scattering (DLS) in the liquid phase. The crystallization of the resulting films was monitored by XRD experiments. At temperatures exceeding 550 °C the film material and glass substrates undergo a chemical reaction, MgO is formed and SiF 4 evaporates as a volatile product. Microstructure and optical properties were characterized as a function of the annealing temperature. The mechanical stability of MgF 2 films was evaluated by the Crockmeter test using both felt and steel wool. It is shown that porous MgF 2 films prepared by this synthesis have a vast potential for the large-area processing of antireflective coatings. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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