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Synthesis and Characterization of ZnO Nanoparticles

Published online by Cambridge University Press:  26 February 2011

I. U. Abhulimen ,
X. B. Chen ,
J. L. Morrison ,
V. K. Rangari ,
L. Bergman  and
K. Das
I. U. Abhulimen
Affiliation:
Department of Electrical Engineering, Tuskegee University, Tuskegee, AL 36088., USA.
X. B. Chen
Affiliation:
Department of Physics, University of Idaho, Moscow, ID 83844–0903., USA.
J. L. Morrison
Affiliation:
Department of Physics, University of Idaho, Moscow, ID 83844–0903., USA.
V. K. Rangari
Affiliation:
Center for Advanced Materials, Tuskegee University, Tuskegee, AL 36088., USA.
L. Bergman
Affiliation:
Department of Physics, University of Idaho, Moscow, ID 83844–0903., USA.
K. Das
Affiliation:
Department of Electrical Engineering, Tuskegee University, Tuskegee, AL 36088., USA.
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Abstract

Nanoparticles of ZnO were synthesized using a sonochemical technique. Sonochemistry arises from an acoustic cavitation phenomenon, that is, the formation, growth and implosive collapse of bubbles in a liquid medium. The ultraviolet photoluminescence (PL) studies of the samples showed a strong PL intensity and a significant blue shift relative to the PL of the bulk. Shifts up to 70 meV were observed and attributed to a confinement effect. Scanning electron microscopy indicated roughly spherical particles, ∼160 nm in diameter. However, nano-platelets and rods were observed in transmission electron micrographs. Preliminary electrical measurements indicated a highly resistive nature of the nanoparticulate material.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 829: Symposium B – Progress in Compound Semiconductor Materials IV – Electronic and Optoelectronic Applications , 2004 , B2.27
Copyright
Copyright © Materials Research Society 2005

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References

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