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Proceedings Paper

Optical and vibrational studies of surface modified ZnO nanostructures
Author(s): T. Pandiyarajan; R. Nagalakshmi; B. Karthikeyan
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Paper Abstract

In this paper, we report 150 MeV Ag3+ ions irradiation effect on ZnO nanoparticles prepared by sol-gel method. The fluence kept as 1012 and 1013 ions/cm3 using 15 UD Pelletron accelerator. The pristine as well as irradiated ZnO nanostructures were characterized by XRD, photoluminescence and FTIR to study the radiation induced effects on the local structure and optical properties. Irradiation with the fluence changes the colour of the sample from white to yellow. XRD measurement shows prepared particles are in hexagonal wurtzite structure and irradiation induces significant change in the lattice parameters. Photoluminescence measurements are done at the excitation wavelength of 335 nm, a broad spectrum consists near band edge emission and defect related visible emission band. FTIR spectra show a band at 514 cm-1 is due to the stretching vibrations of Zn-O bond.

Paper Details

Date Published: 7 September 2011
PDF: 6 pages
Proc. SPIE 8094, Nanophotonic Materials VIII, 80940Q (7 September 2011); doi: 10.1117/12.892715
Show Author Affiliations
T. Pandiyarajan, National Institute of Technology, Tiruchirappalli (India)
R. Nagalakshmi, National Institute of Technology, Tiruchirappalli (India)
B. Karthikeyan, National Institute of Technology, Tiruchirappalli (India)

Published in SPIE Proceedings Vol. 8094:
Nanophotonic Materials VIII
Stefano Cabrini; Taleb Mokari, Editor(s)

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