The effect of rare earth (RE<sup>3+</sup>) ionic radii on transparent lanthanide-tellurite glass-ceramics: correlation between ‘hole-formalism’ and crystallization
Pritha Patra, K. Jayanthi, Margit Fábián, Shweta Rani Keshri, Sandip Bysakh, Kaushik Biswas, Nitya Nand Gosvami, N. M. Anoop Krishnan, Amarnath R. Allu, K. Annapurna
Abstract
Transparent LGTT GCs contain La 2 Te 6 O 15 and Gd 2 Te 6 O 15 crystallites. Dopant Ce 3+ /Pr 3+ /Nd 3+ ions occupy La site of La 2 Te 6 O 15 phase, transforming GCs opaque. Hole-pairs Eu 3+ :Tb 3+ /Sm 3+ :Dy 3+ occupy Gd site in Gd 2 Te 6 O 15 , and retain transparency in GCs.
Topics & Concepts
Ionic radiusLanthanideCrystalliteDopantCrystallizationOpacityRare earthFormalism (music)DopingMaterials scienceIonCrystallographyCeramicMineralogyAnalytical Chemistry (journal)ChemistryPhysicsOpticsThermodynamicsMetallurgyOptoelectronicsOrganic chemistryMusicalVisual artsChromatographyArtGlass properties and applicationsLuminescence Properties of Advanced MaterialsNuclear materials and radiation effects