Title

Defects and symmetry influence on visible emission of Eu doped nanoceria

Authors

Authors

S. Babu; A. Schulte;S. Seal

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

MONODISPERSE CEO2-X NANOPARTICLES; X-RAY; FILMS; Physics, Applied

Abstract

Europium doped cerium oxide particles of 10 nm were synthesized by room temperature chemical precipitation technique and annealed at 500 and 900 C to study its effect on luminescence. X-ray photoelectron spectroscopic result shows an increase in Ce(3+) concentration from 20% to 23% on Eu doping but decreases to 8% on annealing. Raman studies show a progressive blueshift from 461 to 464 cm(-1) due to local symmetry ordering with temperature. Emission intensity varies with the wavelength of excitation and observed transitions indicate the presence of Eu(3+) in different symmetry environments. (C) 2008 American Institute of Physics.

Journal Title

Applied Physics Letters

Volume

92

Issue/Number

12

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

3

WOS Identifier

WOS:000254510300083

ISSN

0003-6951

Share

COinS