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Synthesis and Luminescence Study of n‐UV Excitable Tm3+‐Activated Blue Phosphor.

Authors :
Taikar, Deepak R.
Taikar, Ramesh N.
Nagde, Kalpana R.
Sarve, Sadanand R.
Source :
Macromolecular Symposia. Dec2021, Vol. 400 Issue 1, p1-5. 5p.
Publication Year :
2021

Abstract

Tm3+‐doped La2O3 phosphors with different doping concentration are prepared by co‐precipitation method. The prepared phosphor is characterized by X‐ray powder diffraction (XRD), SEM, Fourier transform infrared (FT‐IR) spectroscopy, and photoluminescence (PL) techniques. The XRD analysis confirms the formation of La2O3. PL measurement shows that the phosphor exhibit characteristic Tm3+ bright blue emission attributed to transition from 1D2 → 3F4 of Tm3+ ions, at 363 nm excitation. The Commission International de I'Eclairage (CIE) chromaticity color coordinates of prepared phosphor is calculated and presented. The excitation peak located at 363 nm matches with the emission wavelength of near UV‐LED chip, this indicates that the prepared phosphor is a promising blue light‐emitting candidate for eco‐friendly solid state lighting (W‐LED) application. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10221360
Volume :
400
Issue :
1
Database :
Academic Search Index
Journal :
Macromolecular Symposia
Publication Type :
Academic Journal
Accession number :
154221662
Full Text :
https://doi.org/10.1002/masy.202100019