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Ag-catalyzed Synthesis of Tb(BO2)3 Nanorods
杨兰,周立群*,黄莹,唐子威
Author NameAffiliationE-mail
杨兰 Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules and College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China  
周立群* Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules and College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China zlq@hubu.edu.cn 
黄莹 Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules and College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China  
唐子威 Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules and College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China  
Abstract:
Well-crystallized with excellent luminescent properties, Tb(BO2)3 nanorods were first suc-cessfully synthesized by a simple solid-state method with Ag as catalyst. The result of X-ray diffraction showed that the Tb(BO2)3 nanorods could be well-crystallized at 700 oC. As-prepared straight nanorods of Tb(BO2)3 had the typical diameters in the range of 100-200 nm, the thickness of 30-50 nm and the lengths up to 3 μm by transmission elec-tron microscopy and the corresponding selected area electron diffraction indicated that the nanorod calcined at 700 oC was single-crystalline. Based on the fact that Ag nanoparti-cles attached to the tips and middles of the Tb(BO2)3 nanorods, a growth model of the Tb(BO2)3 nanorods was proposed. Photoluminescence spectra under excitation at 369 nm showed that these Tb(BO2)3 phosphors had a green emission at 546 nm, which is ascribed to 5D47F5 transition. The effect of calcining temperature on the structures, morphologies, and luminescent properties of Tb(BO2)3 phosphors were studied.
Key words:  Crystal growth, Growth from vapor, Nanostructure, Phosphor
FundProject:
银催化合成Tb(BO2)3纳米棒
Lan Yang,Li-qun Zhou*,Ying Huang,Zi-wei Tang
摘要:
采用固相反应银作催化剂成功合成出棒状结构的稀土硼酸盐Tb(BO2)3发光材料. 利用X射线衍射和区域电子衍射研究了产物的结构特性,在700 oC煅烧时,Tb(BO2)3纳米棒具有良好晶形. 透射电镜分析表明,Tb(BO2)3纳米棒直径为100~200 nm,厚度为30~50 nm,长约3 μm. 基于Ag纳米颗粒附在Tb(BO2)3纳米棒的顶端和中部的事实,探讨了Tb(BO2)3纳米棒的生长机理. 荧光光谱研究表明,在369 nm紫外光激发下,Tb(BO2)3能发出Tb3+的特征绿色荧光,发射主峰位于546 nm,归属于5D47F5跃迁. 同时,也探讨了煅烧温度对产物的结构、形貌以及发光性质的影响.
关键词:  晶体生长,气相生长,纳米结构,荧光粉
DOI:10.1088/1674-0068/23/06/713-718
分类号: