MgF2 films prepared from solvothermally treated precursor solutions
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MgF2 coating solutions were solvothermally treated at 160 °C for different time periods, this procedure induced crystallization and particle growth. Antireflection coatings prepared on glass from these solutions were compared to films derived from untreated precursor material. Ellipsometric porosimetry (EP) was employed to characterize structural features of coatings on glass as function of annealing temperature. Based on precursor solutions that had undergone solvothermal treatment antireflective coatings with a peak transparency exceeding 99% were prepared on PMMA substrates.
KeywordsMgF2 Thin films Antireflective coatings Solvothermal treatment Polymer substrate Ellipsometric porosimetry
This project was funded by the German Federal Ministry of Economics and Technology (grant 0329800). We would like to thank Professor Kemnitz (Humboldt University Berlin) for precursor supply and helpful discussions.
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Conflict of interest
The authors declare that they have no conflict of interest.
- 4.E. Kemnitz, U. Gross, S. Rüdiger "Method for the preparation of X-ray amorphous or weakly crystalline metal oxide fluorides and new uses thereof" EP1666411Google Scholar
- 6.Niederberger M, Pinna N (2009) Aqueous and nonaqueous sol-gel chemistry. In: Metal oxide nanoparticles in organic solvents: synthesis, formation, assembly and application, Springer Nature, Berlin, pp 7–18Google Scholar
- 12.E. Kemnitz Process for magnesium fluoride sol solutions from alkoxides comprising addition of magnesium salts. WO 2014044726 A2Google Scholar