Wet chemical preparation of YVO 4:Eu thin films as red-emitting phosphor layers for fully transparent flat dielectric discharge lamp

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • A. Klausch - , TUD Dresden University of Technology (Author)
  • H. Althues - , Fraunhofer Institute for Material and Beam Technology (Author)
  • T. Freudenberg - , Leibniz Institute for Solid State and Materials Research Dresden (Author)
  • S. Kaskel - , Chair of Inorganic Chemistry I (Author)

Abstract

Highly transparent YVO 4:Eu thin films were deposited via dip coating of liquid nanoparticle dispersions on glass substrates. Annealing of the nanoparticle layers resulted in restructuring of the material into oriented crystalline films. The crystallinity was confirmed using powder X-ray diffraction. Film thickness was adjusted to 467 nm by multiple deposition. The resulting coatings show > 99% absorbance for wavelength below 300 nm and > 90% transmission in the visible spectral range. Under UV-light excitation a bright red photoluminescence with a quantum efficiency of 20% is observed. A planar, transparent dielectric barrier discharge lamp was constructed using YVO 4:Eu coated glasses and transparent electrodes made from antimony-doped tin dioxide thin films.

Details

Original languageEnglish
Pages (from-to)4297-4301
Number of pages5
JournalThin solid films
Volume520
Issue number13
Publication statusPublished - 30 Apr 2012
Peer-reviewedYes

Keywords

Keywords

  • Antimony tin oxide, Discharge lamp, Luminescence, Thin films, Transparent oxide, YVO :Eu

Library keywords