Table of Contents
ISRN Nanotechnology
Volume 2012, Article ID 372505, 6 pages
Research Article

Synthesis, Characterization, and Spectroscopic Properties of ZnO Nanoparticles

1Department of Electronics and Instrumentation Engineering, Lakireddy Bali Reddy College of Engineering (Autonomous), Mylavaram 521230, India
2Department of Chemistry, C.S.T.S. Government Kalasala, Jangareddygudem 534 447, India

Received 1 February 2012; Accepted 4 March 2012

Academic Editor: Z. Crnjak Orel

Copyright © 2012 Satyanarayana Talam et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


ZnO nanoparticles have been synthesized by precipitation method from Zinc nitrate. The powder was characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, selected-area electron diffraction, UV-vis optical absorption, and photoluminescence spectroscopy analyses. XRD patterns showed that ZnO nanoparticles have hexagonal unit cell structure. SEM and TEM pictures reveal the morphology and particle size of prepared ZnO nanoparticles. The UV-vis absorption spectrum shows an absorption band at 355 nm due to ZnO nanoparticles. The photoluminescence spectrum exhibits two emission peaks one at 392 nm corresponding to band gap excitonic emission and another located at 520 nm due to the presence of singly ionized oxygen vacancies. The synthesis method has potential for application in manufacturing units due to ease processing and more economical reagents.