Synthesis and luminescence properties of lanthanide (III)-doped YF3 nanoparticles.
Synthesis process and luminescence properties of trivalent lanthanide ions (Ln3+) doped YF3 nanoparticles have been investigated. To synthesis Ln(3+)-doped YF3 nanoparticles, the mixture of (YCl3 x nH2O + LnCl3 x nH2O), and NH4F was hydrothermal treated at 180 degrees C in a Teflon-liner auto-clave or heated at higher temperatures (400 degrees C - 600 degrees C) in a stove. The XRD patterns showed that the Ln(3+)-doped orthorhombic YF3 nanoparticles with no second phase have been prepared. The solid solution Y(1-x)Eu(x)F3 (x = 0 - 0.4) nanoparticles have been synthesized. The luminescence concentration quenching resulted from resonance energy transfer between neighboring Eu3+ ions occurred at higher Eu3+ concentrations (30 mol%). The upconversion luminescence of Er(3+)-Yb3+ codoped YF3 nanoparticles under 980 nm excitation has also been observed. With increase of heated temperature, the size of the Er(3+)-Yb3+ codoped YF3 nanoparticles increased gradually, and upconversion luminescence intensity increased significantly.
Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P R China.
Yang
Y
Cui
Xianping
X
Fan
Zhanglian
Z
Hong
Minquan
M
Wang
D003460:Crystallization / Q000379:methods*; D005461:Fluorine / Q000737:chemistry*; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D008027:Light; D049449:Luminescence; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods; D010316:Particle Size; D015019:Yttrium / Q000737:chemistry*
D028581:Lanthanoid Series Elements; D005461:Fluorine; D015019:Yttrium