A Tetranuclear Cuprous Halide Cluster Exhibiting Efficient Blue Thermally Activated Delayed Fluorescence  

作　　者：WANG Pei HUANG Chun-Hua CHEN Xu-Lin LU Can-Zhong 王沛;黄春花;陈旭林;卢灿忠(CAS Key Laboratory of Design and Assembly of Functional Nanostructures,and Fujian Provincial Key Laboratory of Nanomaterials,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China;Xiamen Institute of Rare-earth Materials,Haixi Institutes,Chinese Academy of Sciences,Xiamen 361021,China;Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China;Huaqiao University,Xiamen 361021,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]CAS Key Laboratory of Design and Assembly of Functional Nanostructures,and Fujian Provincial Key Laboratory of Nanomaterials,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China [2]Xiamen Institute of Rare-earth Materials,Haixi Institutes,Chinese Academy of Sciences,Xiamen 361021,China [3]Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China [4]Huaqiao University,Xiamen 361021,China [5]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Journal of Structural Chemistry》2021年第11期1489-1495,1408,共8页结构化学（英文）

基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(XDB20000000);the Key Research Program of Frontier Science,CAS(QYZDJ-SSW-SLH033);the National Natural Science Foundation of China(52073286,21805281,21875252);the Natural Science Foundation of Fujian Province(2006L2005,2019J01125);the Youth Innovation Foundation of Xiamen City(3502Z20206082);the Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China(2021ZR132)。

摘　　要：A new tetranuclear cuprous halide complex,(CuBr)_(4)(PN)_(2)(PN=2-(diphenylphosphaneyl)-6-methoxypyridine),was synthesized and fully characterized.In solid state,this complex exhibits efficient blue emission with a photoluminescence quantum yield of 43.3%and a decay time of 19μs at room temperature.The theoretical calculations,combined with the temperature dependence of spectroscopic properties and emission decay behaviors,indicate that the emission in the solid state originates from the ^(1,3)(MLCT+XLCT)excited states,which are in thermal equilibrium with a small energy gap of about 0.1 eV.

关 键 词：cuprous complex thermally activated delayed fluorescence blue emission PHOTOLUMINESCENCE 

分 类 号：O641.4[理学—物理化学]