材料科学
双折射
硼
四面体
窗口(计算)
极化率
紫外线
光电子学
计算机科学
光学
结晶学
化学
分子
物理
有机化学
操作系统
作者
Yanhui Zhang,Fuming Li,Rong Yang,Yun Yang,Fangfang Zhang,Zhihua Yang,Shilie Pan
标识
DOI:10.1007/s11426-021-1200-7
摘要
The design and synthesis of new deep-ultraviolet (DUV) optical materials are important but challenging. It is well known that the polarizability anisotropy of linear [BO2]− is larger than those of [BO3]3− and [BO4]5−, which is the better choice for exploring excellent optical materials. Here, we search for such crystals in borate systems based on the unusual fundamental structural unit [BO2]−. By combining the linear [BO2]− with the traditional triangular [BO3]3− and tetrahedral [BO4]5− units, a new mixed metal borate, Rb5Ba2(B10O17)2(BO2) was obtained via high-temperature solution method. It exhibits excellent optical properties including a DUV transmission window (188 nm) and suitable birefringence (0.06). It also has good thermal stability and its crystal plates can be prepared easily. Furthermore, the strategies of designing borates with [BO2]− units have been proposed from the transformation of crystal framework and the preparation method.
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