Skip to main content

XANES Studies on Eu-doped Fluorozirconate Based Glass Ceramics

  • Bastian Henke (a1), Patrick Keil (a2), Christian Pablick (a3), Dirk Vogel (a4), Michael Rohwerder (a5), Marie-Christin Wiegand (a6), Jacqueline A. Johnson (a7) and Stefan Schweizer (a8)...

The influence of adding InF3 as a reducing agent on the oxidation state of Eu in fluoro-chloro- (FCZ) and fluorobromozirconate (FBZ) glass ceramics was investigated using x-ray ab-sorption near edge (XANES) and photoluminescence (PL) spectroscopy. For both materials, it was found that InF3 decreases the Eu2+-to-Eu3+ ratio significantly. PL spectroscopy proved that an annealing step leads to the formation of Eu-doped BaCl2 and BaBr2 nanocrystals in the FCZ and FBZ glasses, respectively. In the case of FCZ glass ceramics the hexagonal phase of BaCl2 could be detected in indium-free and InF3-doped ceramics, but only for InF3 containing FCZ glass ceramics a phase transition of the nanoparticles from hexagonal to orthorhombic structure is observed. For the FBZ glass ceramics, the hexagonal phase of BaBr2 can be formed with and without indium doping, but only in the indium-free case a phase transition to orthorhombic BaBr2 could be found.

Hide All
1Chen, G. Johnson, J. A. Woodford, J. and Schweizer, S. Appl. Phys. Lett. 88, 191915 (2006).
2Henke, B. Paβlick, C., Keil, P. Johnson, J. A. and Schweizer, S. J. Appl. Phys. 106, 113501 (2009).
3Rohler, J. in “Handbook on the Physics and Chemistry of Rare Earths”, edited by Gschneidner, K. A. Jr., Eyring, L. and Hufner, S. (North-Holland, Amsterdam, 1987), vol. 10, pp. 453545.
4Takahashi, Y. Kolonin, G. R. Shironosova, G. P. Kupriyanova, I. I. Uruga, T. and Shimizu, H. Miner. Mag. 69, 179 (2005).
5Antonio, M. R. Soderholm, L. and Song, I. J. Appl. Electrochem. 27, 784 (1997).
6Schweizer, S. Hobbs, L. W. Secu, M. Spaeth, J.-M. Edgar, A. Williams, G. V. M. J. Appl. Phys. 97, 083522 (2005).
7Edgar, A. Secu, M. Williams, G. V. M. Schweizer, S. and Spaeth, J.-M. J. Phys.: Condens. Matter 13, 62596269 (2001).
8Parker, J. M. Annu. Rev. Mater. Sci. 19, 21 (1989).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *



Full text views

Total number of HTML views: 0
Total number of PDF views: 2 *
Loading metrics...

Abstract views

Total abstract views: 190 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 24th March 2018. This data will be updated every 24 hours.