Effect of Eu3+ Concentration on Luminescence Studies of Y4Al2O9 Phosphor
Joint Authors
Agrawal, Sadhana
Kaur, Jagjeet
Dubey, Vikas
Source
Indian Journal of Materials Science
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-13
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The present paper reports the effect of europium concentration on photoluminescence (PL) and thermoluminescence (TL) studies of Eu3+ doped Y4Al2O9 phosphor using inorganic materials like yttrium oxide (Y2O3), aluminium oxide (Al2O3), boric acid (H3BO3) as a flux, and europium oxide (Eu2O3).
The sample was prepared by the modified solid state reaction method, which is the most suitable for large-scale production.
The prepared phosphor sample was characterized using X-ray diffraction (XRD), field emission gun scanning electron microscopy (FEGSEM), Fourier transform infrared spectroscopy (FTIR), photoluminescence (PL), thermoluminescence (TL), and CIE techniques.
The PL emission was observed in the range of 467, 535, 591, 611, 625, and 629 nm for the Y4Al2O9 phosphor doped with Eu3+ (0.1 mol% to 2.5 mol%).
Excitation spectrum was found at 237 and 268 nm.
Sharp peaks were found around 591, 611, and 625 nm with high intensity.
From the XRD data, using Scherer’s formula, the calculated average crystallite size of Eu3+ doped Y4Al2O9 the phosphor is around 55 nm.
Thermoluminescence study was carried out for the phosphor with UV irradiation.
The present phosphor can act as single host for red light emission in display devices.
American Psychological Association (APA)
Dubey, Vikas& Agrawal, Sadhana& Kaur, Jagjeet. 2014. Effect of Eu3+ Concentration on Luminescence Studies of Y4Al2O9 Phosphor. Indian Journal of Materials Science،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-466353
Modern Language Association (MLA)
Dubey, Vikas…[et al.]. Effect of Eu3+ Concentration on Luminescence Studies of Y4Al2O9 Phosphor. Indian Journal of Materials Science No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-466353
American Medical Association (AMA)
Dubey, Vikas& Agrawal, Sadhana& Kaur, Jagjeet. Effect of Eu3+ Concentration on Luminescence Studies of Y4Al2O9 Phosphor. Indian Journal of Materials Science. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-466353
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-466353