NISCAIR Online Periodicals Repository

NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR)  >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.49 [2011] >
IJPAP Vol.49(07) [July 2011] >


Title: ZnO films prepared by modified sol-gel technique
Authors: Gayen, R N
Sarkar, K
Hussain, S
Bhar, R
Pal, A K
Keywords: ZnO
Sol-gel
Spin coating
Photoluminescence
XRD
FTIR
Issue Date: Jul-2011
Publisher: NISCAIR-CSIR, India
Abstract: Zinc oxide films with different thicknesses have been synthesized by modified sol-gel technique. The films are polycrystalline in nature with average grain size between 32 and 57 nm. The thicker films are less strained than the thinner ones. The optical band gap of the films is ~ 3.22 eV. PL spectra are dominated by a strong luminescence peak at ~387 nm followed by a low intensity peak ~469 nm. The values of ∞ varied between 3.58 and 4.49. The values of plasma frequency are in the range ~ 9.76-6.85x1014 s-1. The FTIR spectra indicate the existence of the distinct characteristic absorption peak at ~475 cm-1 for Zn-O stretching modes. The Raman spectra are dominated by the presence of a strong peak located at ~438 cm-1 followed by peaks at ~581 cm-1 in the higher wave number region.
Page(s): 470-477
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.49(07) [July 2011]

Files in This Item:

File Description SizeFormat
IJPAP 49(7) 470-477.pdf301.39 kBAdobe PDFView/Open
 Current Page Visits: 884 
Recommend this item

 

National Knowledge Resources Consortium |  NISCAIR Website |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2012 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 588555 since 06-Feb-2009  Last updated on 18-Sep-2014Webmaster: nopr@niscair.res.in