Formation and photoluminescence of ZnS:Tb nanoparticles stabilized by polyethylene glycol

Title

Formation and photoluminescence of ZnS:Tb nanoparticles stabilized by polyethylene glycol

Creator

Bindu K.R.; Anila E.I.

Description

ZnS nanoparticles doped with 1 mol.% of Tb have been prepared at 70 C by simple chemical precipitation method using poly ethylene glycol (PEG) as capping agent. The synthesized nanoparticles have been analysed using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), photoluminescence (PL) and UV-Vis absorption spectroscopy. From X-ray diffraction analysis, it was found that nanostructured ZnS:Tb particles exhibited cubic structure with an average crystallite size of 2.75 nm. Room temperature photoluminescence (PL) spectrum of the doped sample exhibited broad emission in the visible region with multiple peaks at 395 and 412 nm due to 5D3?7F6and 7F5transitions and 492, 536, 600, 653 and 680 nm due to 5D4?7F67F57F4,7F1and 7F0transitions. 2020 Elsevier Ltd. All rights reserved.

Source

Materials Today: Proceedings, Vol-42, pp. 563-566.

Date

2020-01-01

Publisher

Elsevier Ltd

Subject

Chromaticity coordinates; Nanoparticles; Phosphor; Photoluminescence; X-ray diffraction

Coverage

Bindu K.R., Sree Sankara Vidyapeetom College, Valayanchirangara, 683556, Kerala, India, Optoelectronic and Nanomaterials' Research Laboratory, Department of Physics, Union Christian College, Aluva, 683102, Kerala, India; Anila E.I., Optoelectronic and Nanomaterials' Research Laboratory, Department of Physics, Union Christian College, Aluva, 683102, Kerala, India, Department of Physics and Electronics, CHRIST (Deemed to Be University), Bengaluru, 560029, India

Rights

Restricted Access

Relation

ISSN: 22147853

Format

Online

Language

English

Type

Conference paper

Identifier

https://doi.org/10.1016/j.matpr.2020.10.641

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