RT info:eu-repo/semantics/article
T1 Bright luminescence of Gd3+ sensitized RE3+-doped SiO2-BaGdF5 glass-ceramics for UV-LEDs colour conversion
A1 del-Castillo, Javier
A1 Yanes Hernández, Ángel Carlos
K1 Rare-earth ions
K1 Sol-gel technique
K1 Energy transfer
K1 Nano-glass-ceramics
K1 Iones de tierras raras
K1 Transferencia de energía
AB RE-doped (Eu3+, Sm3+, Dy3+ or Tb3+) nano-glass-ceramics containing BaGdF5 nanocrystals, have been successfully obtained under thermal treatment of precursor sol-gel glasses. X-ray diffraction, high-resolution transmission electron microscope images and energy dispersive X-ray spectroscopy measurements confirmed the precipitation and distribution of cubic BaGdF5 nanocrystals (around 10 nm in size) in the glass matrix. The luminescent properties, via excitation and emission spectra along with decay curves, were studied. In order to complete the structural analysis, the luminescent features of Eu3+ and Sm3+ ions were also used as sensitive probes, confirming the distribution of a significant fraction of dopant ions into the fluoride nanocrystalline environment. Intense visible emissions were obtained through efficient energy transfer from Gd3+ to RE ions, which leads to consider these materials as potential emitting phosphors for colour converted UV LEDs.
PB Elsevier
SN 0925-8388
YR 2017
FD 2017
LK http://riull.ull.es/xmlui/handle/915/5013
UL http://riull.ull.es/xmlui/handle/915/5013
LA en
NO A.C. Yanes, J. del-Castillo, Bright luminescence of Gd3+ sensitized RE3+-doped SiO2-BaGdF5 glass-ceramics for UV-LEDs colour conversion, Journal of Alloys and Compounds (2016), doi: 10.1016/j.jallcom.2016.11.296.
DS Repositorio institucional de la Universidad de La Laguna
RD 27-nov-2024