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Updated: Jul 23, 2025

Low-energy Cathodoluminescence for OxyNitride Phosphors
Published on: November 15, 2016
Spectroscopic in-depths of upconverting NaZr2(PO4)3 phosphors for LIR-based thermometry
Lakshmi Mukhopadhyay1,2, Sasank Pattnaik1, Vineet Kumar Rai1
1Laser and Spectroscopy Laboratory, Department of Physics, Indian Institute of Technology (Indian School of Mines) Dhanbad 826004 Jharkhand India vineetkrrai@iitism.ac.in vineetkrrai@yahoo.co.in +91-326-223 5404/528.
Abstract:
This study employed solid-state synthesis to develop the green emitting Er3+-Yb3+:NaZr2(PO4)3, NASICON material. Using Rietveld refinement, the crystallographic variables of the synthesized phosphors were precisely calculated. The upconverting phenomenon was seen with naked eye when exposed to 980 nm laser radiation. The intermediate excited state dependency on the unusual photon number dependence on the green and red emission has been understood using the steady-state rate law equations. Further, the temperature sensing performances with good repeatability were compared with different laser densities, and it was found that the prepared phosphors could be an ideal material for upconverting and temperature sensing applications.
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