TY - JOUR
T1 - Eu2+-activated CaSrSiO4
T2 - A new red-emitting oxide phosphor for white-light-emitting diodes
AU - Tezuka, Satoko
AU - Sato, Yasushi
AU - Komukai, Tetsufumi
AU - Takatsuka, Yuji
AU - Kato, Hideki
AU - Kakihana, Masato
PY - 2013/7
Y1 - 2013/7
N2 - Ca1-x Sr1-xEu2xSiO4 (CaSrSiO4:Eu2+) phosphors were prepared by a novel aqueous solution technique using propylene glycol-modified silane (PGMS), combined with a freeze-drying process. The precursors were heat-treated under a reducing atmosphere with BaCl2 flux. X-ray diffraction indicated that the obtained phosphors exhibited an α0-CaSrSiO4 structure. The wavelength at the phosphors' maximum emission was systematically shifted beyond 600nm as the Eu26 concentration was increased. The corresponding excitation spectra were extended to the visible light region (400-500 nm) with increasing Eu 2+ concentration. These results implied that CaSrSiO 4:Eu2+ is a red-emitting phosphor excited by near-UV and blue-light-emitting diodes.
AB - Ca1-x Sr1-xEu2xSiO4 (CaSrSiO4:Eu2+) phosphors were prepared by a novel aqueous solution technique using propylene glycol-modified silane (PGMS), combined with a freeze-drying process. The precursors were heat-treated under a reducing atmosphere with BaCl2 flux. X-ray diffraction indicated that the obtained phosphors exhibited an α0-CaSrSiO4 structure. The wavelength at the phosphors' maximum emission was systematically shifted beyond 600nm as the Eu26 concentration was increased. The corresponding excitation spectra were extended to the visible light region (400-500 nm) with increasing Eu 2+ concentration. These results implied that CaSrSiO 4:Eu2+ is a red-emitting phosphor excited by near-UV and blue-light-emitting diodes.
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U2 - 10.7567/APEX.6.072101
DO - 10.7567/APEX.6.072101
M3 - Article
AN - SCOPUS:84880769433
SN - 1882-0778
VL - 6
JO - Applied Physics Express
JF - Applied Physics Express
IS - 7
M1 - 072101
ER -