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Journal of Sol-Gel Science and Technology

, Volume 85, Issue 3, pp 514–519 | Cite as

MgF2 films prepared from solvothermally treated precursor solutions

  • Rainer Jahn
  • Peer Löbmann
Original Paper: Functional coatings, thin films and membranes (including deposition techniques)

Abstract

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.

Solvothermal treatment of MgF2 precursor solutions results in crystallization of particles that can directly be applied to PMMA substrates for λ/4 antireflective films.

Keywords

MgF2 Thin films Antireflective coatings Solvothermal treatment Polymer substrate Ellipsometric porosimetry 

Notes

Acknowledgements

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.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Fraunhofer-Institut für SilicatforschungWürzburgGermany

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