RT info:eu-repo/semantics/article
T1 Efficient dual-wavelength excitation of Tb3+ emission in rare-earth doped KYF4 cubic nanocrystals dispersed in silica sol-gel matrix
A1 del-Castillo, Javier
A1 Yanes Hernández, Ángel Carlos
A1 Santana-Alonso, A.
A1 Méndez-Ramos, J.
K1 Nano-glass-ceramics
K1 Rare-earth ions
K1 Iones de tierras raras
K1 Sol-gel technique
K1 Up-conversion
AB Energy transfer from Ce3+ to Tb3+ ions under UV excitation, giving rise to visible emissions, is investigated in sol–gel derived transparent nano-glass–ceramics containing cubic KYF4 nanocrystals, for different doping concentrations of rare-earth ions. Moreover, visible emissions of Tb3+ are also obtained under near-infrared excitation through energy transfer from Yb3+ ions by means of cooperative up-conversion processes. Thus, Ce3+–Tb3+–Yb3+ doped nano-glass–ceramics can be activated in a dual-wavelength mode yielding efficient blue–green emissions of particular interest in photovoltaic silicon solar cells and white-light emitting diodes.
PB Elsevier
SN 0925-3467
YR 2014
FD 2014
LK http://riull.ull.es/xmlui/handle/915/5017
UL http://riull.ull.es/xmlui/handle/915/5017
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 27-nov-2024