Issue 20, 2013
From the journal:

RSC Advances

Photoluminescence and cathode-luminescence of Eu3+-doped NaLnTiO4 (Ln = Gd and Y) phosphors†

Niumiao Zhang,a   Chongfeng Guo*a  and  Heng Jinga  

* Corresponding authors

a National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base) in Shaanxi Province, National Photoelectric Technology and Functional Materials & Application of Science and Technology International Cooperation Base, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710069, China
E-mail: gcfzsu@yahoo.com.cn
Fax: +86-29-88302661
Tel: +86-29-88302661

Abstract

Eu3+-activated layered perovskite ionic conductors NaYTiO4 and NaGdTiO4 red-emitting phosphors were successfully synthesized by a modified sol–gel method for applications in field emission displays (FEDs) and ultraviolet-based light-emitting diodes (LEDs). The optimal compositions and parameters of synthesis were determined. The structure and luminescent properties were investigated by X-ray diffraction (XRD), photoluminescence excitation (PLE) and emission (PL) spectra. The cathode-luminescence (CL) spectra of phosphors as a function of accelerating voltage and filament current were also measured. The thermal stabilities and decay curves of phosphors were also investigated. The Eu3+-doped NaYTiO4 phosphor offers higher brightness and thermal stability than Eu3+-doped NaGdTiO4 in identical conditions. The former is the more suitable red-emitting phosphor candidate for LEDs and FEDs.

Graphical abstract: Photoluminescence and cathode-luminescence of Eu3+-doped NaLnTiO4 (Ln = Gd and Y) phosphors

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Article information

DOI
https://doi.org/10.1039/C3RA40375K
Article type
Paper
Submitted
23 Jan 2013
Accepted
21 Feb 2013
First published
22 Feb 2013

RSC Adv., 2013,3, 7495-7502

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Photoluminescence and cathode-luminescence of Eu3+-doped NaLnTiO4 (Ln = Gd and Y) phosphors

N. Zhang, C. Guo and H. Jing, RSC Adv., 2013, 3, 7495 DOI: 10.1039/C3RA40375K

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