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Synthesis and Luminescence Properties of a Cyan-blue Thiosilicate-based Phosphor $SrSi_2S_5:Eu^{2+}$
Nakamuraa, Masayoshi,Katoa, Hideki,Takatsuka, Yuji,Petrykinc, Valery,Tezuka, Satoko,Kakihana, Masato The Korean Infomation Display Society 2010 Journal of information display Vol.11 No.4
A series of Sr-Si-S compounds was synthesized using an advanced chemical method in which the use of one solution-based process uniformly dispersed the $Eu^{2+}$ activators in the host crystals, to find new compositions that would suit phosphor applications. Particular focus was given to the Si-rich region. This led to the synthesis of a single-phase compound that showed an unknown X-ray diffraction pattern. This compound had a composition close to that of $SrSi_2S_5$. When this compound is activated with $Eu^{2+}$ ($SrSi_2S_5:Eu^{2+}$), it shows a cyan-blue emission with a main luminescence peak at 495 nm. This emission is excited by wavelengths of 250-440 nm and has a maximum excitation at 350 nm.
Synthesis and Luminescence Properties of a Cyan-blue Thiosilicate-based Phosphor SrSi2S5:Eu2+
Masayoshi Nakamura,Hideki Kato,Yuji Takatsuka,Valery Petrykin,Satoko Tezuka,Masato Kakihana 한국정보디스플레이학회 2010 Journal of information display Vol.11 No.4
A series of Sr-Si-S compounds was synthesized using an advanced chemical method in which the use of one solution-based process uniformly dispersed the Eu2+ activators in the host crystals, to find new compositions that would suit phosphor applications. Particular focus was given to the Si-rich region. This led to the synthesis of a single-phase compound that showed an unknown X-ray diffraction pattern. This compound had a composition close to that of SrSi2S5. When this compound is activated with Eu2+ (SrSi2S5:Eu2+), it shows a cyan-blue emission with a main luminescence peak at 495 nm. This emission is excited by wavelengths of 250-440 nm and has a maximum excitation at 350 nm.