TY - JOUR
T1 - Rare earth doped LiYbF 4 phosphors with controlled morphologies
T2 - Hydrothermal synthesis and luminescent properties
AU - Huang, Wenjuan
AU - Lu, Chunhua
AU - Jiang, Chenfei
AU - Jin, Junyang
AU - Ding, Mingye
AU - Ni, Yaru
AU - Xu, Zhongzi
PY - 2012/6
Y1 - 2012/6
N2 - High quality monodisperse LiYbF 4 microparticles with shape of octahedron had been prepared via a facile hydrothermal route. The crystalline phase, size, morphology and luminescence properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence (PL) spectra and Commission Internationale de L'Eclairage (CIE 1931) chromaticity coordinates, respectively. The influences of reaction temperature, reaction time and the molar ratio of EDTA to Yb 3+ on the crystal phases and shapes of as-prepared products had been investigated in detail. The upconversion (UC) luminescence properties of LiYb 1-xF 4:xEr 3+ (x =0.1, 0.2, 0.5, 1, 2, 5 and 10 mol%) particles with octahedral microstructures were studied under 976 nm excitation. The results showed that the luminescence colors of the corresponding products could be tuned to bright green by changing the doping concentration of Er 3+ ion. The luminescence mechanisms for the doped Er 3+ ion were thoroughly analyzed, showing great potential in applications such as biolabels, displays and other optical technologies.
AB - High quality monodisperse LiYbF 4 microparticles with shape of octahedron had been prepared via a facile hydrothermal route. The crystalline phase, size, morphology and luminescence properties were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence (PL) spectra and Commission Internationale de L'Eclairage (CIE 1931) chromaticity coordinates, respectively. The influences of reaction temperature, reaction time and the molar ratio of EDTA to Yb 3+ on the crystal phases and shapes of as-prepared products had been investigated in detail. The upconversion (UC) luminescence properties of LiYb 1-xF 4:xEr 3+ (x =0.1, 0.2, 0.5, 1, 2, 5 and 10 mol%) particles with octahedral microstructures were studied under 976 nm excitation. The results showed that the luminescence colors of the corresponding products could be tuned to bright green by changing the doping concentration of Er 3+ ion. The luminescence mechanisms for the doped Er 3+ ion were thoroughly analyzed, showing great potential in applications such as biolabels, displays and other optical technologies.
KW - A. Fluorides
KW - A. Optical materials
KW - D. Luminescence
KW - D. Microstructure
UR - http://www.scopus.com/inward/record.url?scp=84860303814&partnerID=8YFLogxK
U2 - 10.1016/j.materresbull.2012.03.015
DO - 10.1016/j.materresbull.2012.03.015
M3 - 文章
AN - SCOPUS:84860303814
SN - 0025-5408
VL - 47
SP - 1310
EP - 1315
JO - Materials Research Bulletin
JF - Materials Research Bulletin
IS - 6
ER -