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Effects of the Host Morphologies on Luminescence Properties of Nd3+-Doped LaF3 Nanoparticles

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Abstract:

By using different surfactants, several host morphologies including rod-like, pot-like and shuttle-like of LaF3:Nd3+(1% mol) nanoparticles were prepared by a simple microemulsion hydrothermal method, and their properties were characterised by XRD, TEM and photoluminescence spectroscopy. The experimental results indicated that the rod-like and pot-like nanocrystals possess well shaped hollow structures. The analysis of spectra proved that the local environment around the dopant ion changed with the different host morphology, which in turn influenced the luminescence properties. The luminescence lifetimes derived from biexponential fitting were 615 μs (nanopots), 419 μs (nanorods) and 194 μs (nanoshuttles), respectively. This phenomenon is ascribed to the weakening effect of hollow or fenestral structures to the nonradiative ratio.

Keywords: FLUORESCENCE; MORPHOLOGIES; NANOSTRUCTURES; RARE-EARTH FLUORIDES

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2011.4961

Publication date: October 1, 2011

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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