Eu oxidation state in fluorozirconate-based glass ceramics

Year: 2009

Type: article

Abstract: The influence of InF(3) doping and remelting on Eu-doped fluorozirconate-based glass ceramics was investigated using near-edge x-ray absorption and optical spectroscopy. It was found that the addition of InF(3) to the melt decreases the Eu(2+)Eu(3+) mole ratio, while remelting leads to a significant change in the Eu(2+)Eu(3+) ratio in favor of Eu(2+). Photoluminescence spectroscopy shows that additional annealing steps lead to the formation of BaCl(2) nanoparticles in the glass. In as-made glass ceramics containing InF(3), a phase transition of the nanoparticles from hexagonal to orthorhombic structure is observed. This phase transition is not observed in the remelted glasses studied here.

Source: Journal of Applied Physics

DOI: 10.1063/1.3259390

Authors: B. Henke, C. Paßlick, P. Keil, J. A. Johnson, S. Schweizer

Institutions: Fraunhofer Center for Silicon Photovoltaics, Paderborn University, Max-Planck-Institut für Nachhaltige Materialien, Martin Luther University Halle-Wittenberg

Language: English

Topic: Glass properties and applications

Subfield: Ceramics and Composites

Field: Materials Science

Domain: Physical Sciences

Open Access status: bronze

Funders: U.S. Department of Energy, DuPont, Northwestern University, Deutsche Forschungsgemeinschaft, National Institutes of Health, Office of Science, National Institute of Biomedical Imaging and Bioengineering, Basic Energy Sciences

OpenAlex ID: W2051163337