Revisiting an ancient inorganic aggregation-induced emission system:An enlightenment to clusteroluminescence  

作　　者：Zheng Zhao Zaiyu Wang Javad Tavakoli Guogang Shan Jianyu Zhang Chen Peng Yu Xiong Xuepeng Zhang Tsz Shing Cheung Youhong Tang Bolong Huang Zhaoxun Yu Jacky W.Y.Lam Ben Zhong Tang 

机构地区：[1]Department of Chemistry,Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction and Institute for Advanced Study,The Hong Kong University of Science and Technology,Clear Water Bay,Kowloon,Hong Kong SAR,China [2]School of Chemistry and Chemical Engineering,Southeast University,Nanjing,China [3]Centre for Health Technologies,School of Biomedical Engineering,University of Technology Sydney,Sydney,New South Wales,Australia [4]HKUST Shenzhen Research Institute,Shenzhen,Guangdong,China [5]College of Science and Engineering,Flinders University,Adelaide,South Australia,Australia [6]Department of Applied Biology and Chemical Technology,The Hong Kong Polytechnic University,Hung Hom,Kowloon,Hong Kong SAR,China [7]Micro-X Ltd,Tonsley,South Australia,Australia [8]Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional MaterialsGuangdong-Hong Kong-Macao,China

出　　处：《Aggregate》2021年第2期127-135,共9页聚集体（英文）

基　　金：National Natural Science Foundation of China,Grant/Award Numbers:21788102,52003228;Science and Technology Plan of Shenzhen,Grant/Award Number:JCYJ20180306174910791;Natural Science Foundation of Guangdong Province,Grant/Award Number:2019B121205002;Research Grants Council of Hong Kong,Grant/Award Numbers:N_HKUT609/19,16305518,A-HKUST605/16,C6009-17G;Innovation and Technology Commission,Grant/Award Numbers:ITC-CNERC14SC01,ITCPD/17-9。

摘　　要：Organic and inorganic clusteroluminescence have attracted great attention while the underlying mechanisms is still not well understood.Here,we employed a series of ancient inorganic complexes platinocyanides with aggregation-induced emission property to elucidate the mechanism of clusteroluminescence including how does the chromophore form and how does the solid structures influence the luminescence behaviors.The results indicate that the isolated platinocyanide cannot work as a chromophore to emit visible light,while their clusterization at aggregate state can trigger the d-orbitals coupling of the platinum atoms to facilitate the electron exchange and delocalization to form a new chromophore to emit visible light.Furthermore,the counter ions and H2O ligands help to rigidify the three-dimensional network structure of the platinocyanides to suppress the excited state nonradiative decay,resulting in the high quantum yield of up to 96%.This work fundamentally helps understanding both the organic and inorganic clusteroluminescence phenomenon.

关 键 词：aggregation-induced emission clusteroluminescence RADIOLUMINESCENCE 

分 类 号：O62[理学—有机化学]