IN347796: A lanthanum based upconverting microrods and application thereof

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The invention provides a monodispersed lanthanum based upconverting microrods comprising (3 -NaYF4Yb3+, Er3+ and - NaYF4Yb3+, Tm3+, capped with oleic acid. The upconverting microrods, embedded in polymer matrices is used for making security tags and for sensing application. The process of preparation, of the oleic acid capped upconverting microrods is also disclosed.

Patent No:: IN347796
Application No:: 201611002383
Filing Date:: 22-01-2016
Issue Date:: 26-09-2020
Applicant:: CSIR-National Chemical Laboratory (CSIR-NCL), Pune
Inventor(s):: Jayaraj Nithyanandhan, Kadhiravan Shanmuganathan, Alagumalai Ananthan
IPC Classification:: C01F 17/00
Country:: India

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