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KMID : 1059520230670040236
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Journal of the Korean Chemical Society
2023 Volume.67 No. 4 p.236 ~ p.240
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Photoluminescent Properties of EuGa2S4 and Eu2Ga2S5 Phosphors
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Park Jang-Kyung
Jang Min-Kyeong
Huh Young-Duk
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Abstract
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Non-concentration quenching EuGa2S4 and Eu2Ga2S5 phosphors, in which the concentration of Eu2+ activator ion is 100%, were synthesized by a solid state reaction at temperature range from 800 to 1050 ℃. The wavelength of maximum intensity (λmax) of EuGa2S4 and Eu2Ga2S5 phosphors are 546 and 581 nm, respectively. An examination of the Xray diffraction patterns and photoluminescent properties of EuGa2S4 and Eu2Ga2S5 phosphors revealed that EuGa2S4 and Eu2Ga2S5 phosphors were formed at lower temperature range (800~900 ℃) and higher temperature range (1000~1050 ℃), respectively.
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KEYWORD
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Photoluminescence, EuGa2S4, Eu2Ga2S5
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