金属纳米团簇的合成及其光致发光性质的调控  

Synthesis of metal nanoclusters and regulation of their photoluminescent properties

作　　者：李春晖 孙盼盼 丁慧 凌婷 孙頔[1] 辛霞 Chunhui Li;Panpan Sun;Hui Ding;Ting Ling;Di Sun;Xia Xin(School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100,China;China Research Institute of Daily Chemistry Co.,Ltd,Taiyuan 030001,China)

机构地区：[1]山东大学化学与化工学院,济南250100 [2]中国日用化学研究院有限公司,太原030001

出　　处：《中国科学：化学》2021年第6期688-702,共15页SCIENTIA SINICA Chimica

基　　金：国家自然科学基金(编号:91961105,21822107,21972077);山东省重点研发计划(编号:2019GGX102019)资助项目。

摘　　要：金属纳米团簇是一种既具有出色光物理性质,又具有良好生物相容性的零维材料.利用配体对团簇的热力学稳定产物的选择性和还原剂动力学调控可以合成出结构多样的金属纳米团簇,在光学材料、生物医学和催化材料等领域展示出颇具潜力的应用前景.但金属纳米团簇的稳定性差、发光弱等缺点限制了其实际应用,因此通过聚集诱导发光效应和超分子自组装协同调控金属纳米团簇的稳定性及光学性质,可以构筑出结构与发光可控的金属纳米团簇组装体,有效促进金属纳米团簇的实际可用性.本文简要介绍了不同配体保护的金属纳米团簇的合成,阐述了金属纳米团簇的光致发光性质,总结了聚集诱导发光效应对团簇超分子组装体光致发光性质的影响规律,并分析提出了当前研究仍存在的问题及对未来探究的展望.Metal nanocluster is a kind of zero dimensional material with excellent photophysical properties and good biocompatibility.The selectivity of ligands to the thermodynamically stabilized products of clusters and the kinetic regulation of reducing agents can be used to synthesize metal nanoclusters with various structures,which show great potential in the fields of optical materials,biomaterials and catalytic materials.However,the instability and weak luminescence of metal nanoclusters limit their practical application.Therefore,the coordinated regulation of aggregation-induced emission effect and supramolecular self-assembly on stability and optical properties of metal nanoclusters can construct metal nanoclusters assembly with controllable structure and luminescent properties,which effectively promotes the practical availability of metal nanoclusters.In this paper,the synthesis of metal nanoclusters protected by different ligands is briefly introduced,and the photoluminescence properties of metal nanoclusters are illuminated.The influence of aggregation-induced emission effect on the photoluminescence properties of cluster supramolecular assemblies is summarized.The existing problems in current research are analyzed and the prospect of future research are proposed.

关 键 词：金属纳米团簇 配体 光致发光 超分子自组装 聚集诱导发光 

分 类 号：O641.4[理学—物理化学]