Rb_(5)Ba_(2)(B_(10)O_(17))_(2)(BO_(2)):The formation of unusual functional [BO_(2)]^(-) in borates with deep-ultraviolet transmission window

作     者：Yanhui Zhang Fuming Li Rong Yang Yun Yang Fangfang Zhang Zhihua Yang Shilie Pan Yanhui Zhang;Fuming Li;Rong Yang;Yun Yang;Fangfang Zhang;Zhihua Yang;Shilie Pan

作者机构：CAS Key Laboratory of Functional Materials and Devices for Special EnvironmentsXinjiang Technical Institute of Physics&ChemistryChinese Academy of SciencesXinjiang Key Laboratory of Electronic Information Materials and DevicesUrumqi 830011China Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2022年第65卷第4期

页      面：719-725页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0804[工学-仪器科学与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 

基　　金：supported by the National Natural Science Foundation of China(51872325,51922014,61835014,51972336) the Shanghai Cooperation Organization Science and Technology Partnership Program(2020E01039) Xinjiang Tianshan Youth Program-Outstanding Young Science and Technology Talents(2020Q004) the CAS Youth Interdisciplinary Team(JCTD-2021-18) the West Light Foundation of Chinese Academy of Sciences(2021-XBQNXZ-004) the Scientific Instrument Developing Project,Chinese Academy of Sciences(YJKYYQ20210033) Fujian Innovation Academy,Chinese Academy of Sciences,Key Research Program of Frontier Sciences,Chinese Academy of Sciences(ZDBS-LY-SLH035) Xinjiang Outstanding Young Scientific and Technological Talents(2020Q004) the International Partnership Program of CAS(1A1365kysb20200008)。 

主　　题：isolate BO_(2) borate crystal deep-ultraviolet transmission birefringence 

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[BO_(2)]^(−)is larger than those of[BO_(3)]^(3−)and[BO_(4)]^(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[BO_(2)]^(−).By combining the linear[BO_(2)]^(−)with the traditional triangular[BO_(3)]^(3−)and tetrahedral[BO_(4)]^(5−)units,a new mixed metal borate,Rb_(5)Ba_(2)(B_(10)O_(17))_(2)(BO_(2))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[BO_(2)]^(−)units have been proposed from the transformation of crystal framework and the preparation method.