Effect of host composition and Eu 3+ concentration on the photoluminescence of aluminosilicate (Ca,Sr) 2 Al 2 SiO 7 :Eu 3+ phosphors
Publication type: Journal Article
Publication date: 2017-01-01
scimago Q2
wos Q1
SJR: 0.680
CiteScore: 8.5
Impact factor: 4.2
ISSN: 01437208, 18733743
General Chemical Engineering
Process Chemistry and Technology
Abstract
Ca2−xAl2SiO7:xEu3+ (0.03 ≤ x ≤ 0.21) and Sr2−xAl2SiO7:xEu3+ (0.03 ≤ x ≤ 0.15) phosphors are effectively excited by near-UV light (396 nm). The host composition and Eu3+ concentration of the two series phosphors substantially affect its emission characteristics. The calcium aluminosilicate Ca1.82Al2SiO7:0.18Eu3+ is 377% higher in red emission intensity than the Ca1.97Al2SiO7:0.03Eu3+, whereas the strontium aluminosilicate Sr1.88Al2SiO7:0.12Eu3+ is 343% higher in red emission intensity than the Sr1.97Al2SiO7:0.03Eu3+. In addition, the Eu3+ concentration of the Sr2−xAl2SiO7:xEu3+ (x = 0.12) showing the highest red emission intensity is much lower than that of the Ca2−xAl2SiO7:xEu3+ (x = 0.18). In spite of the low Eu3+ concentration, the red emission intensity and red color purity of Sr1.88Al2SiO7:0.12Eu3+ are much stronger and higher than those of the Ca1.82Al2SiO7:0.18Eu3+. Of the prepared phosphors, Sr1.88Al2SiO7:0.12Eu3+ is the optimal composition for obtaining strong and pure red light. Strontium aluminosilicate Sr2−xAl2SiO7:xEu3+ has distinct advantages including strong emission intensity, high color purity, and cost effectiveness.
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Park K., Kim H., Hakeem D. A. Effect of host composition and Eu 3+ concentration on the photoluminescence of aluminosilicate (Ca,Sr) 2 Al 2 SiO 7 :Eu 3+ phosphors // Dyes and Pigments. 2017. Vol. 136. pp. 70-77.
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Park K., Kim H., Hakeem D. A. Effect of host composition and Eu 3+ concentration on the photoluminescence of aluminosilicate (Ca,Sr) 2 Al 2 SiO 7 :Eu 3+ phosphors // Dyes and Pigments. 2017. Vol. 136. pp. 70-77.
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TY - JOUR
DO - 10.1016/j.dyepig.2016.08.022
UR - https://doi.org/10.1016/j.dyepig.2016.08.022
TI - Effect of host composition and Eu 3+ concentration on the photoluminescence of aluminosilicate (Ca,Sr) 2 Al 2 SiO 7 :Eu 3+ phosphors
T2 - Dyes and Pigments
AU - Park, K.
AU - Kim, H.
AU - Hakeem, D. A.
PY - 2017
DA - 2017/01/01
PB - Elsevier
SP - 70-77
VL - 136
SN - 0143-7208
SN - 1873-3743
ER -
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@article{2017_Park,
author = {K. Park and H. Kim and D. A. Hakeem},
title = {Effect of host composition and Eu 3+ concentration on the photoluminescence of aluminosilicate (Ca,Sr) 2 Al 2 SiO 7 :Eu 3+ phosphors},
journal = {Dyes and Pigments},
year = {2017},
volume = {136},
publisher = {Elsevier},
month = {jan},
url = {https://doi.org/10.1016/j.dyepig.2016.08.022},
pages = {70--77},
doi = {10.1016/j.dyepig.2016.08.022}
}