Highly Transparent Fluorotellurite Glass-Ceramics: Structural Investigations and Luminescence Properties.

Crystallization from glass can lead to the stabilization of metastable crystalline phases, which offers an interesting way to unveil novel compounds and control the optical properties of resulting glass-ceramics. Here, we report on a crystallization study of the ZrF-TeO glass system and show that under specific synthesis conditions, a previously unreported TeZrOF zirconium oxyfluorotellurite antiglass phase can be selectively crystallized at the nanometric scale within the 65TeO-35ZrF amorphous matrix. This leads to highly transparent glass-ceramics in both the visible and near-infrared ranges.

Nd-doped transparent tellurite ceramics bulk lasers.

We report on the laser emission of the polycrystalline ceramic obtained from the full and congruent crystallization of the parent glass 1Nd:75TeO-12.5BiO-12.5NbO composition.

A new oxyfluorotellurate(IV), InTe2O5F.

A new oxyfluorotellurate(IV), indium fluoridopentaoxidotellurate(IV), InTe2O5F, has been synthesized by solid-state reaction and structurally characterized. The crystal structure consists of a three-dimensional framework formed by InO4F2 octahedra and Te2O5 units. The InO4F2 octahedra are linked through the F atoms, which lie on twofold axes, giving rise to helical chains.