Title: Studies on ZnO nanorods

Authors: Karunapati Tripathi, M. Husain, Numan A. Salah, Sami S. Habib, S.M. Abdallah El-Hamidy, Nabeel Zaki Zahed, Zishan H. Khan

Addresses: Department of Physics, Jamia Millia Islamia (Central University), Jamia Nagar, New Delhi-110025, India. ' Department of Physics, Jamia Millia Islamia (Central University), Jamia Nagar, New Delhi-110025, India. ' Center of Nanotechnology, King Fahad Medical Research Center, King Abdulaziz University, P.O. Box 80216, Jeddah-21589, Kingdom of Saudi Arabia. ' Center of Nanotechnology, King Fahad Medical Research Center, King Abdulaziz University, P.O. Box 80216, Jeddah-21589, Kingdom of Saudi Arabia. ' Faculty of Science, Department of Biological Sciences, King Abdulaziz University, P.O. Box 80203, Jeddah-21589, Kingdom of Saudi Arabia. ' Faculty of Science, Department of Biological Sciences, King Abdulaziz University, P.O. Box 80203, Jeddah-21589, Kingdom of Saudi Arabia. ' Center of Nanotechnology, King Fahad Medical Research Center, King Abdulaziz University, P.O. Box 80216, Jeddah-21589, Kingdom of Saudi Arabia; Faculty of Engineering and Technology, Department of Applied Sciences and Humanities, Jamia Millia Islamia (Central University), Jamia Nagar, New Delhi-110025, India

Abstract: Nanorods of ZnO are synthesised using thermal evaporation method. In this method, Zn powder is evaporated at a temperature of 400°C in the presence of oxygen and argon gases. The crystallinity of these ZnO nanorods is studied using XRD. The XRD pattern suggests that these as-grown nanorods are crystalline and diffraction pattern are indexed to a typical wurtzite structure. This agrees well with the reported data (JCPDS card no. 36-1451). It is clear from the transmission electron microscope (TEM) images that the diameter of these nanorods varies from 20 nm to 70 nm and their length is of the order of several hundred nanometers. The UV-Vis spectra show a broad peak at 379 nm, which is a characteristic of ZnO.

Keywords: ZnO nanorods; UV-Vis spectra; X-ray diffraction; XRD; scanning electron microscope; SEM; transmission electron microscope; TEM; nanotechnology; thermal evaporation.

DOI: 10.1504/IJNP.2009.028747

International Journal of Nanoparticles, 2009 Vol.2 No.1/2/3/4/5/6, pp.148-155

Published online: 30 Sep 2009 *

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