Effective warm white-light emission with Dy:YAlO 3 single crystal

被引:2
作者
Zhang, Cong [1 ]
Chen, Yunru [1 ]
Ma, Shihui [1 ]
Fan, Honghua [1 ]
Yu, Yonggui [1 ]
Hu, Zhanggui [1 ]
Ye, Ning [1 ]
Wang, Jiyang [2 ]
Wu, Yicheng [1 ]
机构
[1] Tianjin Univ Technol, Inst Funct Crystals, Sch Mat Sci & Engn, Tianjin Key Lab Funct Crystal Mat, Tianjin 300384, Peoples R China
[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
基金
中国国家自然科学基金;
关键词
Dy; YAP crystal; white -light emitting; large crystal growth; LUMINESCENT PROPERTIES; OPTICAL-PROPERTIES; DY3+; PHOSPHOR; GROWTH; RELAXATION; IONS;
D O I
10.3788/COL202321.051602
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Dysprosium-doped orthorhombic yttrium aluminate (Dy:YAlO3 or Dy:YAP) single crystals were grown by the Czochralski method with a size of & phi;43 mm x 150 mm. Based on the measurements of spectra and theoretical analysis, the white-light emission was investigated with different doping concentrations. The optimal white emission was achieved at Dy3+ doping concentration of 1.0% under 450 nm excitation. Combining with residual pumping light, the white-light output was success-fully obtained with Commission Internationale de l & PRIME;Eclairage (CIE) coordinates x = 0.3797, y = 0.3685, the color temperature of 4000 K, and the largest fluorescence quantum yield of 46.9%. With the development of the GaN laser diode, the Dy:YAP single crystal has proven applicable in white-light-emitting diodes.
引用
收藏
页数:5
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