A New Borate-phosphate Compound CsNa2Lu2(BO3)(PO4)2:Crystal Structure and Tb3+ Doped Luminescence

• 作者: SHI Jian-Chao WANG Hao ZHANG Rui-Juan ZHAO Dan
• 来源期刊: 结构化学
• 年，卷（期）: 2022,（2）
• 所属期刊栏目: organic and inorganic structural chemistry
• 页码范围: 141-147
• 页数: 7页
• 语种: 英文
• DOI: 10.14102/j.cnki.0254-5861.2011-3284

摘要

Composite borate-phosphate compounds have always attracted much attention for their structure diversity and interesting properties.In this work,a new borate-phosphate CsNa2Lu2(BO3)(PO4)2 (CNLBP) was found for the first time and its structure was characterized by single-crystal X-ray diffraction method.It crystallizes in orthorhombic system,space group Cmcm with a =6.8750(5),b =14.6919(1),c =10.5581(7) (A),V=1066.44(1)(A)3,Z =4,Mr =777.58,Dc =4.843 g/cm3,F(000) =1368,μ(MoKa) =22.20 mm-1,R(F2 ＞ 2σ(F2)) =0.0173 and wR(F2) =0.0367.The structure of CNLBP features a chain framework of[Lu2(BO3)(PO4)2]∞ that delimits 1D tunnels filled by Na+ and Cs+ ions.Phosphors CNLBP:xTb (x =0,0.1,0.2,0.4,0.6,0.8,1.0) were prepared,and it can emit bright green light under near-UV excitation due to the 5D4→7Fj (j =6,5,4,3) transition of Tb3+.Due to the large separation of Lu3+ ions in CNLBP structure lattice,the optimal concentration of Tb3+ is 80％,and concentration quenching occurs only for the full Tb3+ concentration.