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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 585Effect of Rare Earth Doped Elements and...

Effect of Rare Earth Doped Elements and Characterization of LaF₃:Ln³⁺ (Ln³⁺= Ce³⁺, Pr³⁺, Nd³⁺) Nanocrystals

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Abstract:

Abstract. LaF3 nanocrystals doped with lanthanides like Ce3+, Pr3+ and Nd3+ have been prepared using microwave technique. These synthesized crystals have been characterized by X-ray powder diffraction. Well dispersed, elongated, nanorods of hexagonal geometry (approximately 20nm in size) have been found in TEM analysis. The average particle size estimated from XRD analysis is about 20 nm and is in close agreement with the TEM results. Four characteristic peaks one at 3434 cm-1 (broad) and other at 2924, 2853, 1632 cm-1(sharp) have been observed in the FTIR spectra. Intense Blue colour (458 nm) emission has been recorded when crystals are excited with photons of wavelength 254 nm. Non Linear Optical (NLO) properties of the synthesized nanocrystals have been studied. It has been found that second harmonic generation (SHG) efficiency of the prepared samples containing rare earth elements is less than pure Potassium dihydrogen phosphate (KDP) crystals.

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Advances in Materials and Processing

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Periodical:

Advanced Materials Research (Volume 585)

Pages:

174-178

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.585.174

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Cite this paper

Online since:

November 2012

Authors:

S.G. Gaurkhede, M.M. Khandpekar, S.P. Pati, A.T. Singh

Keywords:

Inorganic Element, IR, Luminescent Material, Nanorod, TEM, X-Ray

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