Controllable synthesis and luminescence property of spherical Lu(OH)CO3:Ln(3 )/LuBO3:Ln(3 ) (Ln=Eu, Tb) nanoparticles
Controllable synthesis and luminescence property of spherical Lu(OH)CO3:Ln(3 )/LuBO3:Ln(3 ) (Ln=Eu, Tb) nanoparticles
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球形Lu(OH)CO3:Ln(3)/LuBO3:Ln(3)(Ln=Eu,Tb)纳米粒子的可控合成及发光性能
DOI：
10.1007/s11696-019-00728-7
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发表时间：
2019
期刊：
影响因子：
2.2
通讯作者：
Wang Ya-bo
中科院分区：
文献类型：
--
作者：
Zhang Li-hui;Zhou Yan-biao;Li Wei-li;Zhao Xu-yao;Wang Ya-bo
采用软化学方法合成了Lu（OH）CO 3：Ln 3 +/LuBO 3：Ln 3+（Ln = Eu，Tb）纳米球。该合成方法不需要添加任何有机溶剂和表面活性剂。整个过程包括均匀沉淀和热液作用。首先，采用尿素均匀沉淀法制备了粒径约为70 nm的球形Lu（OH）CO 3：Ln 3+（Ln = Eu，Tb）纳米粒子。然后，以上述Lu（OH）CO 3：Ln 3+（Ln = Eu，Tb）纳米球为前驱体，通过简单的水热法制备了Lu（OH）CO 3：Ln 3 +/LuBO 3：Ln 3+（Ln = Eu，Tb）纳米球复合材料。采用X射线衍射、场发射扫描电子显微镜、透射电子显微镜和光致发光等手段对样品的物相、形貌和发光性能进行了表征。在短波长激发下，对Eu 3+和Tb 3+掺杂的LuBO 3下转换样品进行了研究和解释。
Lu(OH)CO3:Ln3+/LuBO3:Ln3+(Ln = Eu, Tb) nanospheres have been synthesized by the soft chemistry route. This synthesis process does not require the addition of any organic solvents and surfactant. The whole process consists of homogeneous precipitation and hydrothermal process. First, uniform spherical Lu(OH)CO3:Ln3+(Ln = Eu, Tb) nanoparticles with the sizes of 70 nm were obtained by the classic urea-based homogeneous precipitation. Then, with the above Lu(OH)CO3:Ln3+(Ln = Eu, Tb) nanosphere as the precursor, the composites of Lu(OH)CO3:Ln3+/LuBO3:Ln3+(Ln = Eu, Tb) nanospheres formed by the simple hydrothermal process. The phases, morphologies, as well as the luminescence properties of as-prepared samples were characterized by means of X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and photoluminescence. Under a short wavelength excitation, the down-conversion Eu3+and Tb3+-doped LuBO3samples were investigated and explained.