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Circular Plate‐Based YBO 3 :Eu 3+ Assemblies: Synthesis and Photoluminescence Properties
Author(s) -
Chen Limiao,
Cheng Hua,
Liu Guocong,
Duan Xuechen
Publication year - 2008
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2007.02011.x
Subject(s) - photoluminescence , annealing (glass) , scanning electron microscope , materials science , analytical chemistry (journal) , hydrothermal circulation , spectroscopy , diffraction , luminescence , mineralogy , crystallography , chemical engineering , chemistry , optics , optoelectronics , composite material , physics , chromatography , quantum mechanics , engineering
Uniform cake‐like YBO 3 :Eu 3+ assemblies were successfully synthesized by a poly(vinylpyrrolidone)‐assisted hydrothermal method. The products were characterized by X‐ray diffraction, scanning electron microscopy, and photoluminescence spectroscopy. The results revealed that these particles were actually composed of many circular plates, which aligned well along their longitudinal direction. A high annealing temperature (≥1100°C) led to the formation of a new phase (Y 3 BO 6 ) and the disappearance of the cake‐like morphology. Photoluminescence measurements indicated that the cake‐like YBO 3 :Eu 3+ exhibited a higher ratio (R/O value) compared with the bulk YBO 3 :Eu 3+ , and the emission intensity enhanced with increasing annealing temperature up to 1000°C and then declined with further increasing temperature due to the formation of a new phase.