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Photoluminescence Study of Up-Conversion Phosphor La<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub> Yb<sup>3+</sup>, Er<sup>3+</sup> Prepared by Precipitation Method

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Title Photoluminescence Study of Up-Conversion Phosphor La2(MoO4)3 Yb3+, Er3+ Prepared by Precipitation Method
 
Creator Shah, Kevil
Chauhan, Sohan M
Chakrabarty, B S
 
Subject Up-conversion process
Phosphor
Photoluminescence
Precipitation
Chromaticity
Up-conversion mechanism
Energy transitions
 
Description 850-856
Up-conversion phosphors of La2(MoO4)3: Yb3+, Er3+ with different concentration of Erbium were prepared by a simple
precipitation method. The crystal structure, surface morphology, elemental composition and photoluminescence properties
were characterized by X–ray powder diffraction (XRD), Scanning electron microscopy (SEM), Energy dispersive X–ray
Spectroscopy (EDAX) and Photoluminescence spectroscopy respectively. XRD spectra show high degree of crystallinity in
all samples. SEM images shows rod like structures presence in the samples. EDAX analysis confirm the presence of dopants
(Yb3+ and Er3+) in the host matrix (La2(MoO4)3). Upon excitation by 980 nm infrared radiation, all the samples give
emission peaks between 524 – 533 nm in the bluish green region, 546 – 555 nm in the green region and 659 – 672 nm in the
red region which are attributed to the 2H11/2 → 4I15/2, 4S3/2 → 4I15/2 and 4F9/2 → 4I15/2 transitions of Er3+ ions respectively.
 
Date 2021-12-17T06:14:16Z
2021-12-17T06:14:16Z
2021-12
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscair.res.in/handle/123456789/58629
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJPAP Vol.59(12) [December 2021]