Saraf, Mohit and Kumar, Pawan and Kedawat, Garima and Dwivedi, Jaya and Vithayathil, Sajna Antony and Jaiswal, Nagendra and Kaipparettu, Benny Abraham and Gupta, Bipin Kumar (2015) Probing Highly Luminescent Europium-Doped Lanthanum Orthophosphate Nanorods for Strategic Applications. Inorganic Chemistry, 54 (6). 2616-2625 . ISSN 0020-1669

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Abstract

Herein we have established a strategy for the synthesis of highly luminescent and biocompatible europium-doped lanthanum orthophosphate (La0.85PO4Eu0.153+) nanorods. The structure and morphogenesis of these nanorods have been probed by XRD, SEM, and TEM/HRTEM techniques. The XRD result confirms that the as-synthesized nanorods form in a monazite phase with a monoclinic crystal structure. Furthermore, the surface morphology shows that the synthesized nanorods have an average diameter of similar to 90 nm and length of similar to 2 mu m. The HRTEM images show clear lattice fringes that support the presence of better crystal quality and enhanced photoluminescence hypersensitive red emission at 610 nm (D-5(0)-F-7(2)) upon 394 nm wavelength excitation. Furthermore, time-resolved spectroscopy and an MTT assay of these luminescent nanorods demonstrate a photoluminescent decay time of milliseconds with nontoxic behavior. Hence, these obtained results suggest that the as-synthesized luminescent nanorods could be potentially used in invisible security ink and high-contrast bioimaging applications.

Item Type:	Article
Subjects:	Chemistry > Inorganic Chemistry Chemistry > Nuclear Chemistry
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	06 Oct 2016 06:34
Last Modified:	06 Oct 2016 06:34
URI:	http://npl.csircentral.net/id/eprint/1954

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