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          Institute: MPI für Chemische Physik fester Stoffe     Collection: publications 2013     Display Documents



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ID: 670773.0, MPI für Chemische Physik fester Stoffe / publications 2013
Synthesis, characterization and luminescent properties of needle-like lanthanide-doped orthorhombic Y5O4F7
Authors:Liu, B. Q.; Liu, L. S.; Guo, K.; Wang, J.; Zhu, L. L.; Zhang, H.; Wen, W.; Yang, T. Y.; Zhao, J. T.
Language:English
Date of Publication (YYYY-MM-DD):2013-08-31
Title of Journal:Journal of Rare Earths
Volume:31
Issue / Number:8
Start Page:745
End Page:749
Review Status:not specified
Audience:Not Specified
Abstract / Description:Thermal annealing of YOH1.1F1.9 and YOH1.1F1.9:Ln(3+) (Ln(3+)=Eu3+, Tb3+ and Gd3+) precursors in air gave access to synthesize yttrium oxyfluoride phosphors with well-preserved needle-like morphologies. The phase purities of samples strongly depended on the thermal annealing temperature. At 600 degrees C, pure Y5O4F7 with orthorhombic structure were obtained, as evidenced by powder X-ray diffraction measurement and chemical analysis. The interesting microstructure evolution. of the annealed sample from well-organized nanoparticles on curly slices to microrod-bundle structure had been aroused by raising annealing temperature. The multicolor fluorescent emissions of Y5O4F7:Ln(3+) phosphors were observed, e.g. ultraviolet emission for Gd3+, green emission for Tb3+ and red emission for Eu3+, which resulted from characteristic transitions of different lanthanide ions.
External Publication Status:published
Document Type:Article
Communicated by:Ina Werner
Affiliations:MPI für chemische Physik fester Stoffe
Identifiers:ISI:000324660500002 [ID No:1]
ISSN:1002-0721 [ID No:2]
DOI:10.1016/S1002-0721(12)60352-4
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