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Structural and optical properties of Dy3+ doped Sr2SiO4 phosphors Cover

Structural and optical properties of Dy3+ doped Sr2SiO4 phosphors

Open Access
|Mar 2019

Abstract

Dysprosium doped strontium silicate phosphor namely (Sr2SiO4:Dy3+) was prepared by low-temperature solution combustion method using urea (CO(NH2)2) as a fuel. The material was characterized by powder X-ray diffraction (XRD), FT-IR, SEM and EDX. The average crystallite sizes was calculated by Scherer formula. Thermoluminescence study was carried out for the phosphor which showed single glow curve. The kinetic parameter were calculated by using Chen’s glow curve method. Photoluminescence spectra revealed strong transition at 473 nm (blue), 571 nm (yellow) and weak transition at 645 nm (red). These peaks were assigned to transition 4F9/26H15/2, 13/2, 11/2. CIE graph of Sr2SiO4:Dy3+ phosphor is suitable for the generation of white light emission.

DOI: https://doi.org/10.2478/msp-2019-0008 | Journal eISSN: 2083-134X | Journal ISSN: 2083-1331
Language: English
Page range: 55 - 64
Submitted on: Jul 22, 2017
Accepted on: Dec 3, 2018
Published on: Mar 6, 2019
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2019 Durga Verma, R.P. Patel, Mohan L. Verma, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.