Investigations of white light emitting europium doped zinc oxide nanoparticles

Ashtaputre, S. S. ; Nojima, A. ; Marathe, S. K. ; Matsumura, D. ; Ohta, T. ; Tiwari, R. ; Dey, G. K. ; Kulkarni, S. K. (2008) Investigations of white light emitting europium doped zinc oxide nanoparticles Journal of Physics D: Applied Physics, 41 (1). 015301_1-015301_. ISSN 0022-3727

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Official URL: http://iopscience.iop.org/0022-3727/41/1/015301

Related URL: http://dx.doi.org/10.1088/0022-3727/41/1/015301

Abstract

Europium doped zinc oxide nanoparticles have been synthesized using a chemical route. The amount of doped europium was varied which shows the changes in the photoluminescence (PL) intensity. The post synthesis annealing effect on the properties of ZnO nanoparticles has also been investigated. In general, PL is broad and a white light is emitted which originates from ZnO and the intra-4f transitions of Eu3+ ions. The X-ray diffraction patterns do not show any Eu-related peaks for as-synthesized ZnO nanoparticles as well as for annealed samples. X-ray absorption spectroscopy reveals that europium ions are present on the surface of the core of ZnO and inside the shell of zinc hydroxide [Zn(OH2)] after annealing.

Item Type:Article
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ID Code:82294
Deposited On:10 Feb 2012 04:49
Last Modified:17 Jul 2012 00:29

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