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Title: Synthesis and photoluminescence of Tb{sup 3+} Activated NaY(WO{sub 4}){sub 2} phosphors

Abstract

Graphical abstract: The phosphor powders of NaY(WO{sub 4}){sub 2}:Tb{sup 3+} were prepared by solid state reaction. The dependence of luminescence intensity on the Tb{sup 3+} concentration was investigated. Highlights: ► We synthesize NaY(WO{sub 4}){sub 2}:Tb{sup 3+} phosphors by the solid-state reaction technique. ► We observe and explain the blue shifting of excitation peak positions of CTBs. ► The PL from {sup 5}D{sub 3} level become less probable with increasing the Tb{sup 3+} content. ► The PL intensity increases with Tb{sup 3+} content without concentration quenching. ► NaY(WO{sub 4}){sub 2}:Tb{sup 3+} has potential application as a green emitting phosphor in lamps. -- Abstract: The novel yellowish green phosphor powders of NaY(WO{sub 4}){sub 2} doped with Tb{sup 3+} were prepared by solid-state reaction. The powder samples were characterized by X-ray diffraction and photoluminescence. X-ray diffraction analysis showed that the phosphors sintered at 900 °C for 6 h were a pure NaY(WO{sub 4}){sub 2} phase for all the Tb{sup 3+} doping concentrations. The room temperature excitation spectra vary with the Tb{sup 3+} concentration and consist of an intense charge transfer band of WO{sub 4}{sup 2−} group and weak intra-4f{sup 8} transition absorption peaks of Tb{sup 3+} ions. The photoluminescence spectra, excited at themore » peak wavelengths of charge transfer bands, consist of the characteristic Tb{sup 3+} emission transitions from {sup 5}D{sub 3} and {sup 5}D{sub 4} excited levels to {sup 7}F{sub J} (J = 3–6) levels. The dependence of luminescence intensity on the Tb{sup 3+} concentration in NaY(WO{sub 4}){sub 2}:Tb phosphors was investigated.« less

Authors:
 [1]; ; ; ;  [1]
  1. School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006 (China)
Publication Date:
OSTI Identifier:
22215581
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; ABSORPTION; DOPED MATERIALS; EXCITATION; EXCITED STATES; OPTICAL PROPERTIES; PEAKS; PHOSPHORS; PHOTOLUMINESCENCE; POWDERS; SOLIDS; TUNGSTATES; X-RAY DIFFRACTION

Citation Formats

Liu, Xiaohua, E-mail: xhliuxhliu@tom.com, Xiang, Wendou, Chen, Fengming, Zhang, Wei, and Hu, Zhengfa. Synthesis and photoluminescence of Tb{sup 3+} Activated NaY(WO{sub 4}){sub 2} phosphors. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.07.012.
Liu, Xiaohua, E-mail: xhliuxhliu@tom.com, Xiang, Wendou, Chen, Fengming, Zhang, Wei, & Hu, Zhengfa. Synthesis and photoluminescence of Tb{sup 3+} Activated NaY(WO{sub 4}){sub 2} phosphors. United States. doi:10.1016/J.MATERRESBULL.2012.07.012.
Liu, Xiaohua, E-mail: xhliuxhliu@tom.com, Xiang, Wendou, Chen, Fengming, Zhang, Wei, and Hu, Zhengfa. Thu . "Synthesis and photoluminescence of Tb{sup 3+} Activated NaY(WO{sub 4}){sub 2} phosphors". United States. doi:10.1016/J.MATERRESBULL.2012.07.012.
@article{osti_22215581,
title = {Synthesis and photoluminescence of Tb{sup 3+} Activated NaY(WO{sub 4}){sub 2} phosphors},
author = {Liu, Xiaohua, E-mail: xhliuxhliu@tom.com and Xiang, Wendou and Chen, Fengming and Zhang, Wei and Hu, Zhengfa},
abstractNote = {Graphical abstract: The phosphor powders of NaY(WO{sub 4}){sub 2}:Tb{sup 3+} were prepared by solid state reaction. The dependence of luminescence intensity on the Tb{sup 3+} concentration was investigated. Highlights: ► We synthesize NaY(WO{sub 4}){sub 2}:Tb{sup 3+} phosphors by the solid-state reaction technique. ► We observe and explain the blue shifting of excitation peak positions of CTBs. ► The PL from {sup 5}D{sub 3} level become less probable with increasing the Tb{sup 3+} content. ► The PL intensity increases with Tb{sup 3+} content without concentration quenching. ► NaY(WO{sub 4}){sub 2}:Tb{sup 3+} has potential application as a green emitting phosphor in lamps. -- Abstract: The novel yellowish green phosphor powders of NaY(WO{sub 4}){sub 2} doped with Tb{sup 3+} were prepared by solid-state reaction. The powder samples were characterized by X-ray diffraction and photoluminescence. X-ray diffraction analysis showed that the phosphors sintered at 900 °C for 6 h were a pure NaY(WO{sub 4}){sub 2} phase for all the Tb{sup 3+} doping concentrations. The room temperature excitation spectra vary with the Tb{sup 3+} concentration and consist of an intense charge transfer band of WO{sub 4}{sup 2−} group and weak intra-4f{sup 8} transition absorption peaks of Tb{sup 3+} ions. The photoluminescence spectra, excited at the peak wavelengths of charge transfer bands, consist of the characteristic Tb{sup 3+} emission transitions from {sup 5}D{sub 3} and {sup 5}D{sub 4} excited levels to {sup 7}F{sub J} (J = 3–6) levels. The dependence of luminescence intensity on the Tb{sup 3+} concentration in NaY(WO{sub 4}){sub 2}:Tb phosphors was investigated.},
doi = {10.1016/J.MATERRESBULL.2012.07.012},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}