The Promising Synthetic Route Hydrothermal Synthesis of Non-Stoichiometric Cerium and Boron Containing Compounds and Characterization

Abstract

Cerium, the most abundant rare earth element, and boron containing mineral (lithium tetraborate pentahydrate) were used for synthesizing rare earth borates. Alternatively, for preparing rare earth borates, hydrothermal technique can be used. The non-stoichiometric cerium and boron containing compounds were synthesized by hydrothermal method using cerium sulphate and lithium tetraborate pentahydrate in appropriate molar ratio. Characterizations were done by X-ray diraction, Fourier transform infrared spectroscopy, scanning electron microscopy/energy dispersive X-ray analysis, and thermogravimetric/dierential thermal analysis.

Preparation and luminescent properties of a rare earth borate red light-emitting material

“…Borate doped Eu 3+ shows intense red emission lines at 616 nm corresponding to the forced ED transition ( 5 D 0 → 7 F 2 ) of Eu 3+ . Now, the borate phosphors doped Eu 3+ , such as (Y,Gd)BO 3 :Eu,YAl 3 (BO 3 ) 4 :Eu and BaZr(BO 3 ) 2 :Eu attract attention as red emitting phosphors for plasma display panels [7][8][9][10][11].…”