Open AccessPreparation and up-conversion luminescence of 8 nm rare-earth doped fluoride nanoparticles
Author(s) -
V. K. Tikhomirov,
Michel Mortier,
Patrick Gredin,
G. Patriarche,
Christiane GörllerWalrand,
Victor Moshchalkov
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.014544
Subject(s) - materials science , photoluminescence , luminescence , nanoparticle , doping , impurity , transmission electron microscopy , scanning electron microscope , quantum yield , analytical chemistry (journal) , spectroscopy , dispersion (optics) , ion , nanotechnology , optics , optoelectronics , fluorescence , chemistry , composite material , physics , organic chemistry , chromatography , quantum mechanics
Free-standing, 8 nm diameter, rare-earth doped nanoparticles Re(10)Pb(25)F(65) have been prepared, where Re stands for either single rare-earth ion, such as Er(3+), Yb(3+), Eu(3+), Dy(3+), Ho(3+), Tm(3+) or combinations of those ions. The nanoparticles have been extracted by chemical etching from the oxyfluoride nano-glass-ceramics template and analyzed by transmission electron microscope with energy dispersion spectroscopy. The nanoparticles show durable up-conversion photoluminescence, which is neither concentration nor impurity quenched after 6 months ageing in ambient atmosphere. High doping levels in these nanoparticles ensure high, up to 15%, quantum yield of up-conversion luminescence.