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Characteristics of Pr3+ ion-doped t-zircon type LaVO4 prepared using a hydrothermal method
Journal of Electroceramics ( IF 1.7 ) Pub Date : 2021-09-10 , DOI: 10.1007/s10832-021-00247-6
Lay-Gaik Teoh , Hao-Long Chen , Sean Wu , Chia-Rong Chang , Yee-Shin Chang

The luminescent properties of Pr3+ ion-doped t-type LaVO4 phosphor synthesized by the hydrothermal method were investigated. The XRD results shows that the optimum conditions for preparing t-type LaVO4 are 180 oC, 16 h. These particles are homogeneous distribution with uniform particle sizes for various Pr3+ ion concentrations, but the particle sizes seem to be increased with increasing Pr3+ ion contents. For Pr3+ ion-doped m-type and t-type LaVO4 phosphor, the absorption and excitation behavior are almost the same, but there is an obviously difference for emission behavior. The main emission peak is from the 1D23H4 transition for Pr3+ ion-doped t-type LaVO4 phosphor. The Commission International de I’Edairage chromaticity coordinates shifted from blue region to white region, and then shift to light-blue region. A single white light emitting phosphor can be obtained if the Pr3+ ion concentration is appropriate.



中文翻译:

水热法制备Pr3+离子掺杂t-锆石型LaVO4的特性

研究了水热法合成的Pr 3+离子掺杂t型LaVO 4荧光粉的发光性能。XRD结果表明,制备t型LaVO 4的最佳条件是180 o C,16 h。对于不同的Pr 3+离子浓度,这些颗粒具有均匀的粒径分布,但粒径似乎随着Pr 3+离子含量的增加而增加。对于Pr 3+离子掺杂的m型和t型LaVO 4荧光粉,吸收和激发行为几乎相同,但发射行为存在明显差异。主要发射峰来自1Pr 3+离子掺杂的t型LaVO 4磷光体的D 23 H 4跃迁。Commission International de I'Edairage 色度坐标从蓝色区域转移到白色区域,然后转移到浅蓝色区域。如果Pr 3+离子浓度合适,可以获得单一的白色发光磷光体。

更新日期:2021-09-12
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