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Title: Sol–gel synthesis of long-lasting phosphors CdSiO{sub 3}: Mn{sup 2+}, RE{sup 3+} (RE = Tb, Eu, Nd) and luminescence mechanism research

Abstract

Highlights: ► New long-lasting CdSiO{sub 3}: Mn{sup 2+}, RE{sup 3+} (RE = Tb, Eu, Nd) phosphors were synthesized by a sol–gel method. ► The afterglow performance of the CdSiO{sub 3}: Mn{sup 2+}, Eu{sup 3+} phosphor was the best. ► The role of RE{sup 3+} co-doped into the CdSiO{sub 3}: Mn{sup 2+} matrix was discussed in this paper. -- Abstract: Mn{sup 2+} and RE{sup 3+} (RE = Tb, Eu, Nd) co-doped CdSiO{sub 3} orange phosphors were prepared at 1050 °C by a sol–gel method. The phase and crystallinity of the synthesized materials were investigated by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The luminescence characteristics were analyzed using photoluminescence (PL) spectra, afterglow decay curves, long-lasting phosphorescence spectra, and thermoluminescence (TL) spectra. Due to the difference in co-doped rare earth ionic radii, it varied greatly in trap density and trap depth caused by the different defects deriving from RE{sup 3+} ions co-doping into the CdSiO{sub 3}: Mn{sup 2+} host. The afterglow intensity and time for these samples increased as follows: CdSiO{sub 3}: Mn{sup 2+}0.2%, Nd{sup 3+}0.8% < CdSiO{sub 3}: Mn{sup 2+}0.4%, Tb{sup 3+}0.8% < CdSiO{sub 3}: Mn{sup 2+}0.4%, Eu{sup 3+}0.3%. CdSiO{sub 3}: Mn{sup 2+}0.4%, Eu{sup 3+}0.3% had the best afterglowmore » properties, which could be due to the proper traps formed by Eu{sup 3+} ions co-doping into the host. The role of RE{sup 3+} co-doped into the CdSiO{sub 3}: Mn{sup 2+} matrix and the possible long-lasting phosphorescence process was also discussed in this paper.« less

Authors:
 [1];  [1]; ; ; ;  [1]
  1. Institute of Materials Science and Engineering, Ocean University of China, Songling Road 238, Qingdao 266100, Shandong Province (China)
Publication Date:
OSTI Identifier:
22215129
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 6; 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; DOPED MATERIALS; EUROPIUM IONS; MANGANESE IONS; NEODYMIUM IONS; PHOSPHORESCENCE; PHOTOLUMINESCENCE; RHENIUM IONS; SCANNING ELECTRON MICROSCOPY; SYNTHESIS; TERBIUM IONS; THERMOLUMINESCENCE; X-RAY DIFFRACTION

Citation Formats

Qu, Xiaofei, Cao, Lixin, Liu, Wei, Su, Ge, Wang, Pingping, and Schultz, Isabel. Sol–gel synthesis of long-lasting phosphors CdSiO{sub 3}: Mn{sup 2+}, RE{sup 3+} (RE = Tb, Eu, Nd) and luminescence mechanism research. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2011.08.012.
Qu, Xiaofei, Cao, Lixin, Liu, Wei, Su, Ge, Wang, Pingping, & Schultz, Isabel. Sol–gel synthesis of long-lasting phosphors CdSiO{sub 3}: Mn{sup 2+}, RE{sup 3+} (RE = Tb, Eu, Nd) and luminescence mechanism research. United States. doi:10.1016/J.MATERRESBULL.2011.08.012.
Qu, Xiaofei, Cao, Lixin, Liu, Wei, Su, Ge, Wang, Pingping, and Schultz, Isabel. Fri . "Sol–gel synthesis of long-lasting phosphors CdSiO{sub 3}: Mn{sup 2+}, RE{sup 3+} (RE = Tb, Eu, Nd) and luminescence mechanism research". United States. doi:10.1016/J.MATERRESBULL.2011.08.012.
@article{osti_22215129,
title = {Sol–gel synthesis of long-lasting phosphors CdSiO{sub 3}: Mn{sup 2+}, RE{sup 3+} (RE = Tb, Eu, Nd) and luminescence mechanism research},
author = {Qu, Xiaofei and Cao, Lixin and Liu, Wei and Su, Ge and Wang, Pingping and Schultz, Isabel},
abstractNote = {Highlights: ► New long-lasting CdSiO{sub 3}: Mn{sup 2+}, RE{sup 3+} (RE = Tb, Eu, Nd) phosphors were synthesized by a sol–gel method. ► The afterglow performance of the CdSiO{sub 3}: Mn{sup 2+}, Eu{sup 3+} phosphor was the best. ► The role of RE{sup 3+} co-doped into the CdSiO{sub 3}: Mn{sup 2+} matrix was discussed in this paper. -- Abstract: Mn{sup 2+} and RE{sup 3+} (RE = Tb, Eu, Nd) co-doped CdSiO{sub 3} orange phosphors were prepared at 1050 °C by a sol–gel method. The phase and crystallinity of the synthesized materials were investigated by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The luminescence characteristics were analyzed using photoluminescence (PL) spectra, afterglow decay curves, long-lasting phosphorescence spectra, and thermoluminescence (TL) spectra. Due to the difference in co-doped rare earth ionic radii, it varied greatly in trap density and trap depth caused by the different defects deriving from RE{sup 3+} ions co-doping into the CdSiO{sub 3}: Mn{sup 2+} host. The afterglow intensity and time for these samples increased as follows: CdSiO{sub 3}: Mn{sup 2+}0.2%, Nd{sup 3+}0.8% < CdSiO{sub 3}: Mn{sup 2+}0.4%, Tb{sup 3+}0.8% < CdSiO{sub 3}: Mn{sup 2+}0.4%, Eu{sup 3+}0.3%. CdSiO{sub 3}: Mn{sup 2+}0.4%, Eu{sup 3+}0.3% had the best afterglow properties, which could be due to the proper traps formed by Eu{sup 3+} ions co-doping into the host. The role of RE{sup 3+} co-doped into the CdSiO{sub 3}: Mn{sup 2+} matrix and the possible long-lasting phosphorescence process was also discussed in this paper.},
doi = {10.1016/J.MATERRESBULL.2011.08.012},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 6,
volume = 47,
place = {United States},
year = {2012},
month = {6}
}