Lin C.C., Lin K.M., Lin C.C., Lin K.M., Li Y.Y., Lin C.C., Lin K.M.
National Chung Cheng University, TW
Keywords: nanophosphor powders sol-gel process photoluminescence
Eu-ion doped Gd2O3 nanophosphor powders were prepared by sol-gel method using GdCl3 and EuCl3 at 800-1100 oC. The size of phosphors was about 50-200nm depending on the synthesis temperature for 2hr. Nanophosphors was examined by XRD, FE-SEM, TEM, and the results showed that the materials possess a well-crystal and confirmed as Gd2O3: Eu3+ particles. The photoluminescence (PL) measurement of the Gd2O3: Eu3+ showed a red-emission at the main wavelength of 612 nm (5D0à7F2). It was found that 5% of Eu3+ is the best molar concentration to obtain the highest PL intensity for Gd2O3:Eu3+.
Journal: TechConnect Briefs
Volume: 1, Technical Proceedings of the 2006 NSTI Nanotechnology Conference and Trade Show, Volume 1
Published: May 7, 2006
Pages: 808 - 811
Industry sector: Advanced Materials & Manufacturing
Topic: Materials Characterization & Imaging
ISBN: 0-9767985-6-5