Research Papers

Influence of morphological transformation on luminescence properties of europium-doped gadolinium oxide nanostructures

[+] Author Affiliations
Kai Zhang, Hareesh Dondapati, Terence Holloway

Norfolk State University, Center for Materials Research, 700 Park Avenue, Norfolk, Virginia 23504

Wei Cao

Old Dominion University, 12050 Jefferson Avenue, Newport News, Virginia 23606

Arik Kar, Amitava Patra

Indian Association for the Cultivation of Science, Department of Materials Science, Jadavpur, Kolkata 700032 India

Aswini K. Pradhan

Norfolk State University, Center for Materials Research, 700 Park Avenue, Norfolk, Virginia 23504

J. Nanophoton. 4(1), 043517 (September 24, 2010). doi:10.1117/1.3501312
History: Received May 17, 2010; Revised July 15, 2010; Accepted September 20, 2010; September 24, 2010; Online September 24, 2010
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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.

© 2010 Society of Photo-Optical Instrumentation Engineers

Citation

Kai Zhang ; Hareesh Dondapati ; Terence Holloway ; Wei Cao ; Arik Kar, et al.
"Influence of morphological transformation on luminescence properties of europium-doped gadolinium oxide nanostructures", J. Nanophoton. 4(1), 043517 (September 24, 2010). ; http://dx.doi.org/10.1117/1.3501312


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