title: Eu oxidation state in fluorozirconate-based glass ceramics.
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.
authors.forename: B
authors.initials: B
authors.lastname: Henke
authors.forename: C
authors.initials: C
authors.lastname: Paßlick
authors.forename: P
authors.initials: P
authors.lastname: Keil
authors.forename: J A
authors.initials: JA
authors.lastname: Johnson
authors.forename: S
authors.initials: S
authors.lastname: Schweizer