Title

Role of trivalent La and Nd dopants in lattice distortion and oxygen vacancy generation in cerium oxide nanoparticles

Authors

Authors

S. Patil; S. Seal; Y. Guo; A. Schulte;J. Norwood

Comments

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Abbreviated Journal Title

Appl. Phys. Lett.

Keywords

RAMAN-SCATTERING; CEO2; PARTICLES; Physics, Applied

Abstract

Nanocrystalline Ce1-xRExO2-y (RE=La and Nd) powders were synthesized with a controlled size in the range of 3-5 nm using microemulsion technique. The nanoceria retains its cubic fluorite structures for the complete doping range. X-ray diffraction and Raman spectroscopic studies showed that the lattice distortion increased with the doping amount and was found to be higher for La-doped samples compared to the Nd doping. Spatial correlation model used for Raman analysis suggested increased defect concentration for the doped samples compared to nanoceria.

Journal Title

Applied Physics Letters

Volume

88

Issue/Number

24

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

3

WOS Identifier

WOS:000238314800083

ISSN

0003-6951

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