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High Temperature Synthesis of Yellow-emitting Y2BaAl4SiO12:Ce3+ Phosphors for WLED Applications
Chemical Physics Letters ( IF 2.8 ) Pub Date : 2018-08-02 , DOI: 10.1016/j.cplett.2018.08.003
Jin Young Park , Sung Jun Park , Byung Kee Moon , Minseok Kwak , Kiwan Jang , Hyun Kyoung Yang

Yellow-emitting Y2BaAl4SiO12:Ce3+ (YBAS:Ce3+) phosphors were synthesized by a sol-gel method followed by annealing at high temperature. The phase purity of the YBAS:Ce3+ phosphors was confirmed by X-ray diffraction analysis. The emission characteristics of YBAS:Ce3+ phosphors were investigated by measuring their photoluminescence excitation and emission spectra. These phosphors can be efficiently excited with blue light that induced an intense yellow emission peak centered at 530 nm. White light-emitting diodes (WLEDs) were fabricated using the synthesized YBAS:6Ce3+ phosphors. The CIE chromaticity coordinates of YBAS:6Ce3+ and the fabricated WLEDs were located at the yellow (0.391, 0.563) and cool white-light (0.265, 0.326) regions, respectively.



中文翻译:

WLED应用的高温合成黄光Y 2 BaAl 4 SiO 12:Ce 3+荧光粉的高温合成

通过溶胶-凝胶法合成黄色发光的Y 2 BaAl 4 SiO 12:Ce 3+(YBAS:Ce 3+)荧光粉,然后在高温下退火。通过X射线衍射分析确认了YBAS:Ce 3+荧光粉的相纯度。通过测量YBAS:Ce 3+荧光粉的光致发光激发和发射光谱来研究其发光特性。这些磷光体可以被蓝光有效地激发,该蓝光诱导了以530 nm为中心的强烈的黄色发射峰。使用合成的YBAS:6Ce 3+荧光粉制造了白色发光二极管(WLED)。YBAS:6Ce的CIE色度坐标3+和制造的WLED分别位于黄色(0.391,0.563)和冷白光(0.265,0.326)区域。

更新日期:2018-08-02
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