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Journal of Nanophotonics

Influence of morphological transformation on luminescence properties of europium-doped gadolinium oxide nanostructures
Author(s): Kai Zhang; Hareesh Dondapati; Terence Holloway; Wei Cao; Arik Kar; Amitava Patra; Aswini K. Pradhan
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Paper Abstract

Low dimensional europium (Eu3+)-doped gadolinium oxide (Gd2O3) lanthanide nanostructures are synthesized by an effective and simple coprecipitation process followed by subsequent heat treatments. Transmission electron microscope (TEM) images indicate Eu3+-doped Gd2O3 nanostructures undergo significant morphological changes from nanorods to nanoparticles during thermal treatments. Nanostructures with different morphology, including nanotubes, strongly influence the photoluminescence properties. The dependence of luminescence lifetime on morphological nature of the nanostructures demonstrates that the one dimensional nanostructures such as nanorods and nanotubes have higher emission intensity with shorter lifetime. Our analysis suggests that the morphological transformation of the nanostructures plays the most important role in the behavior of radiative and nonradiative relaxation mechanisms, resulting in the overall photoluminescence properties.

Paper Details

Date Published: 1 September 2010
PDF: 12 pages
J. Nanophoton. 4(1) 043517 doi: 10.1117/1.3501312
Published in: Journal of Nanophotonics Volume 4, Issue 1
Show Author Affiliations
Kai Zhang, Norfolk State Univ. (United States)
Hareesh Dondapati, Norfolk State Univ. (United States)
Terence Holloway, Norfolk State Univ. (United States)
Wei Cao, Old Dominion Univ. (United States)
Arik Kar, Central Glass and Ceramic Research Institute (India)
Amitava Patra, Central Glass and Ceramic Research Institute (India)
Aswini K. Pradhan

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