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Preparation of crystalline fibres of codoped BaAl 2 O 4 :Eu 2+ :Cr 3+
Author(s) -
Ryu H.,
Bartwal K. S.
Publication year - 2009
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200811182
Subject(s) - crystallinity , high resolution transmission electron microscopy , doping , transmission electron microscopy , annealing (glass) , materials science , microstructure , crystallography , x ray crystallography , analytical chemistry (journal) , diffraction , phosphor , scanning electron microscope , powder diffraction , chemistry , nanotechnology , optics , composite material , optoelectronics , physics , chromatography
Phosphor material BaAl 2 O 4 :Eu 2+ , Cr 3+ with varying concentrations of Cr co‐doping were prepared by solid‐state synthesis method. Crystalline fibres were obtained by controlled annealing temperature. Synthesized compositions were characterized for their phase and crystallinity by powder x‐ray diffraction. The crystalline morphology was investigated using SEM analysis. High resolution transmission electron microscopy (HRTEM) in image and diffraction modes was used to investigate the microstructure. The effect of Cr doping on quality and morphology of grown crystals was investigated. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)