Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 124, Issue 2-3, Pages 1172-1176Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2010.08.053
Keywords
Inorganic compounds; Annealing; Crystal fields; Luminescence
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Funding
- National Natural Science Foundation of China [10974041]
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Hexagonal LaPO4 nH(2)O Eu3+ nano-wires and dual-phase LaPO4 Eu3+ nano-wires with hexagonal and monoclinic structures were synthesized by hydrothermal reaction at 150 and 220 C respectively The effects of high temperature treatment on the structure morphology and photoluminescence of the specimens were also investigated with X-ray diffraction (XRD) Fourier-transform Infrared spectroscopy (FTIR) scanning electron microscopy (SEM) transmission electron microscopy (TEM) and fluorescence spectrophotometer (FL) The results indicated the phase transformation for LaPO4 Eu3+ from the hexagonal structure to the monoclinic structure occurred after the specimens were calcined at 900 C for 12 h in the air The wire-like structures of LaPO4 Eu3+ were destroyed and transformed into particle-like structures at high temperature The mechanism of transformation from nano-wires to particles was introduced briefly The photoluminescence properties of as-prepared and annealed specimens were also discussed in detail (C) 2010 Published by Elsevier B V
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