Title :
Modified solid phase synthesis of alkaline earth metal halide (BaFBr:Eu2+) phosphor
Author :
Cheng, Ta-Ming ; Lin, Geng-Te ; Wang, Hui-Chun ; Cheng, Ming-Chin ; Wu, Hsien-Ming ; Lee, Chi-Young
Author_Institution :
Center for Nanotechnol., Mater. Sci. & Microsyst., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
A BaFBr:Eu2+ photoluminescence phosphor powder was synthesized by modified solid phase method using BaCO3, NH4F, NH4Br and EuF3 as precursors. The powder was obtained by treating BaCO3 (1 μmol), NH4F (0.5 μmol), NH4Br (0.5 μmol) and EuF3 (0.02 μmol) at 300 °C under argon atmosphere, followed by reduction at 800 °C under hydrogen atmosphere and then decarbonization at 600 °C, with F/Br ratio near 1 and the Eu2+ incorporated about 1 mol% showed the most promising performance.
Keywords :
barium compounds; europium; fluorine compounds; phosphors; photoluminescence; powders; reduction (chemical); BaFBr:Eu; alkaline earth metal halide phosphor; argon atmosphere; decarbonization; hydrogen atmosphere; modified solid phase synthesis; photoluminescence phosphor powder; reduction; temperature 300 degC; temperature 600 degC; temperature 800 degC; Argon; Atmosphere; Phosphors; Photoluminescence; Powders; X-ray diffraction; BaFBr:Eu2+; photoluminescence;
Conference_Titel :
Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-749-8
DOI :
10.1109/ICMREE.2011.5930520
