Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
Volume 205, Issue 2-3, Pages 145-150Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2009.04.020
Keywords
Luminescence; Silica; Lanthanide ions; Gadolinium titanate
Categories
Funding
- Egyptian Ministry of Higher Education and Scientific Research
Ask authors/readers for more resources
Gadolinium titanate doped with lanthanide metal ions (Gd2Ti2O7:Eu3+ or Dy3+) and embedded in silica matrix is prepared by sol-gel process. TG/DSC, IR, Raman spectroscopy and TEM have been used to investigate thermal, structural and optical properties of xerogels annealed at 1100 degrees C. The photoluminescence (PL) spectra showed the characteristic emission bands of Eu3+ and Dy3+ in the host matrix. A significant increase in the PL lifetime is observed in the silica nanocomposite matrix relative to the pure europium-doped gadolinium titanate nanoparticles at the same dopant concentration. The effects of lanthanide metal ion concentration and thermal treatment on the luminescence properties of Ln(3+) ion are investigated. (C) 2009 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available