CaSn(OH)6 hydroxides, CaSnO3 oxides and CaSnF6 fluorides: synthesis and structural filiation. Cationic environment impact on Pr3+ doped compounds luminescence
Language
en
Article de revue
This item was published in
Journal of Solid State Chemistry. 2018-09, vol. 265, p. 291-298
Elsevier
English Abstract
CaSn(OH)6, CaSnO3 and CaSnF6 compounds were elaborated from a “one-batch” synthesis route: the coprecipitation of the pure double hydroxide leads to pure double oxide or fluoride after annealing treatments under air or HF ...Read more >
CaSn(OH)6, CaSnO3 and CaSnF6 compounds were elaborated from a “one-batch” synthesis route: the coprecipitation of the pure double hydroxide leads to pure double oxide or fluoride after annealing treatments under air or HF as anhydrous gas, respectively. Structural and morphological features of the three matrices were carefully investigated by X Ray Diffraction analysis and Scanning Electron Microscopy, respectively. In addition, the luminescent properties of the Pr-doped compounds were performed and compared. The nanometric size of the double hydroxide inhibits the luminescence. The interpretation of the emission spectra obtained for Pr-doped CaSnO3 and CaSnF6 compounds is based on the covalence/ionic balance of the M–O or M–F bonds.Read less <
English Keywords
Praseodymium
Crystal field
Luminescence
Nephelauxetic effect
Stannate
Praseodymium
Crystal field
Luminescence
Nephelauxetic effect
ANR Project
Fluorures inorganiques photochromes - ANR-16-CE08-0029
Origin
Hal imported