RT info:eu-repo/semantics/article
T1 Novel Sr2LuF7–SiO2 nano-glass-ceramics: Structure and up-conversion luminescence
A1 del-Castillo, Javier
A1 Yanes Hernández, Ángel Carlos
A1 Luis, D.
A1 Puentes, J.
K1 Nano-glass-ceramics
K1 Rare-earth ions
K1 Sol-gel technique
K1 Energy transfer
K1 Up-conversion
AB Novel transparent nano-glass-ceramics comprising RE-doped Sr2LuF7 nanocrystals have been obtained by thermal treatment of precursor sol–gel glasses. The precipitated Sr2LuF7 nanocrystals with sizes from 4.5 to 11.5 nm, confirmed by X-Ray Diffraction and Transmission Electron Microscopy images, show a cubic phase structure. The luminescent features of Eu3+ ions, used as structural probes, evidence the distribution of RE ions into the fluoride nanocrystals. Under 980 nm laser excitation, intense UV, vis and NIR up-conversion emissions were observed and studied in Yb3+–Tm3+, Yb3+–Er3+ and Yb3+–Ho3+ co-doped nano-glass-ceramics. These results suggest considering these nano-glass-ceramics for potential optical applications as high efficient UV up-conversion materials in UV solid state lasers, infrared tuneable phosphors and photonic integrated devices.
PB Elsevier
SN 0022-2313
YR 2016
FD 2016
LK http://riull.ull.es/xmlui/handle/915/5024
UL http://riull.ull.es/xmlui/handle/915/5024
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 22-dic-2024