Abstract
SrS:Eu phosphor has been well known for a long time for its properties of photo-stimulated luminescence and thermoluminescence and has been used for material for display (CRT or EL) or sensor. We have synthesized a SrS:Eu red phosphor through the solid-state reaction under the reduction atmosphere (5% H2/95% N2) and investigated the luminescent properties. High luminescence efficiency of SrS:Eu red phosphor has been obtained through the simple process without toxic gas such as CS2 or H2S. The prepared phosphor shows a higher emission intensity (above 150%) than that of commercial phosphor. Also, it is possible to be applicated to the red phosphor for white LEDs which is generated to combine three wavelength (Red·Green·Blue) because of the high luminescence efficiency.
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