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

来源：

CHINESE OPTICS LETTERS | 2023年 / 21卷 / 05期

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

页数：5

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