RSC Adv
Phosphors Research Laboratory, Department of Applied Chemistry, National Chiao Tung University Hsinchu 30010 Taiwan
Published: March 2018
Novel Eu-activated BaGaSiS and BaGaSiS thiogallate phosphors were prepared by solid-state reaction route. The BaGaSiS:Eu phosphor generated a green emission upon excitation at 405 nm, whereas the BaGaSiS:Eu phosphor could be tuned from cyan to green range with increasing Eu concentration upon excitation at 365 nm. Additionally, the thermal luminescence properties of the thiogallate phosphors were investigated in the temperature range of 25 to 250 °C. A warm-white LED is fabricated using the combination of a 405 nm blue InGaN-based LED chip with the green-emitting BaGaSiS:0.01Eu phosphor, and red-emitting SrSiN:Eu commercial phosphor with the CRI value of ∼88 and the CCT of 4213 K.
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http://dx.doi.org/10.1039/c8ra01113c | DOI Listing |
RSC Adv
March 2018
Phosphors Research Laboratory, Department of Applied Chemistry, National Chiao Tung University Hsinchu 30010 Taiwan
Novel Eu-activated BaGaSiS and BaGaSiS thiogallate phosphors were prepared by solid-state reaction route. The BaGaSiS:Eu phosphor generated a green emission upon excitation at 405 nm, whereas the BaGaSiS:Eu phosphor could be tuned from cyan to green range with increasing Eu concentration upon excitation at 365 nm. Additionally, the thermal luminescence properties of the thiogallate phosphors were investigated in the temperature range of 25 to 250 °C.
View Article and Find Full Text PDFJ Nanosci Nanotechnol
November 2007
Department of Materials Science and Engineering, Kyonggi University, Suwon 443-760, Korea.
Eu2+ doped M-thiogallate (MGa2S4, M: Zn, Ca, Sr) phosphors were prepared by solid-state reaction. The dependence of luminescent properties, photoluminescence and cathodoluminescence, on M2+ ions was investigated. ZnGa2S4: Eu2+, CaGa2S4: Eu2+, and SrGa2S4: Eu2+ exhibited a green emission band at 540 nm, 560 nm, and 535 nm, respectively.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!
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