Synthesis and luminescent properties of low oxygen contained Eu2+-doped Ca-α-SiAlON phosphor from calcium cyanamide reduction
来源期刊：Journal of Rare Earths2008年第2期
论文作者：PIAO Xianqing Ken-ichi Machida Takashi Horikawa Hiromasa Hanzawa
文章页码：198 - 202
摘 要：A new convenient calcium cyanamide （CaCN2） reduction route was developed to synthesize the Eu2+ activated Ca-α-SiAlON phosphors containing low oxygen content. The luminescence properties of the obtained products were investigated for white LEDs applica- tion. The critical Eu2+ concentration in various hosts and its effect on the photoluminescence properties were studied. The optimized sample （10at.% Eu2+ vs. Ca2+） could be efficiently excited by the current GaN/InGaN blue LED chips and provided emission intensity competitive with that of YAG:Ce3+ （P46-Y3） standard, revealing that this phosphor was a potential candidate for phosphor-converted white LEDs.
PIAO Xianqing，Ken-ichi Machida，Takashi Horikawa，Hiromasa Hanzawa
摘 要：A new convenient calcium cyanamide （CaCN2） reduction route was developed to synthesize the Eu2+ activated Ca-α-SiAlON phosphors containing low oxygen content. The luminescence properties of the obtained products were investigated for white LEDs applica- tion. The critical Eu2+ concentration in various hosts and its effect on the photoluminescence properties were studied. The optimized sample （10at.% Eu2+ vs. Ca2+） could be efficiently excited by the current GaN/InGaN blue LED chips and provided emission intensity competitive with that of YAG:Ce3+ （P46-Y3） standard, revealing that this phosphor was a potential candidate for phosphor-converted white LEDs.
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