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Luminescence based on energy transfer in silica doped with lanthanide titania (Gd2Ti2O7:Ln3+) [Ln3+ = Eu3+ or Dy3+]

Paper ID Volume ID Publish Year Pages File Format Full-Text
27906 44049 2009 6 PDF Available
Title
Luminescence based on energy transfer in silica doped with lanthanide titania (Gd2Ti2O7:Ln3+) [Ln3+ = Eu3+ or Dy3+]
Abstract

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 °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 Ln3+ ion are investigated.

Keywords
Luminescence; Silica; Lanthanide ions; Gadolinium titanate
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Luminescence based on energy transfer in silica doped with lanthanide titania (Gd2Ti2O7:Ln3+) [Ln3+ = Eu3+ or Dy3+]
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 205, Issues 2–3, 25 June 2009, Pages 145–150
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us