Hypersensitive dual-function luminescence switching of a silver-chalcogenolate cluster-based metal-organic framework
Publication in refereed journal

香港中文大學研究人員
替代計量分析
.

其它資訊
摘要Silver(I) chalcogenide/chalcogenolate clusters are promising photofunctional materials for sensing, optoelectronics and solar energy harvesting applications. However, their instability and poor room-temperature luminescent quantum yields have hampered more extensive study. Here, we graft such clusters to adaptable bridging ligands, enabling their interconnection and the formation of rigid metal-organic frameworks. By controlling the spatial separation and orientation of the clusters, they then exhibit enhanced stability (over one year) and quantum yield (12.1%). Ultrafast dual-function fluorescence switching (<1 s) is also achieved, with turn-off triggered by O-2 and multicoloured turn-on by volatile organic compounds. Single-crystal X-ray diffraction of the inclusion materials, obtained by single-crystal-to-single-crystal transformation, enables precise determination of the position of the small molecules within the framework, elucidating the switching mechanism. The work enriches the cluster-based metal-organic framework portfolio, bridges the gap between silver chalcogenide/chalcogenolate clusters and metal-organic frameworks, and provides a foundation for further development of functional silver-cluster-based materials.
出版社接受日期07.12.2016
著者Ren-Wu Huang, Yong-Sheng Wei, Xi-Yan Dong, Xiao-Hui Wu, Chen-Xia Du, Shuang-Quan Zang, Thomas C. W. Mak
期刊名稱NATURE CHEMISTRY
出版年份2017
月份7
卷號9
期次7
出版社NATURE PUBLISHING GROUP
頁次689 - 697
國際標準期刊號1755-4330
電子國際標準期刊號1755-4349
語言英式英語
Web of Science 學科類別Chemistry, Multidisciplinary;Chemistry

上次更新時間 2020-02-12 於 01:40