Contribution of Metal Defects in the Assembly Induced Emission of Cu Nanoclusters.
Aggregation/assembly induced emission (AIE) has been observed for metal nanoclusters (NCs), but the origin of the enhanced emission is not fully understood, yet. In this work, the significant contribution of metal defects on AIE is revealed by engineering the self-assembly process of Cu NCs using et...
| Publicado en: | Journal of the American Chemical Society Vol. 139; no. 12; pp. 4318 - 4322 |
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| Autores principales: | , , , , , , , , , |
| Formato: | Artículo |
| Publicado: |
American Chemical Society
3/29/2017
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=122258967&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 122258967 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 3/29/2017 vid: 139 iid: 12 pid: 997 pub: American Chemical Society artinfo: ui: 122258967 10.1021/jacs.7b00773 ppf: 4318 ppct: 4 formats: tig: atl: Contribution of Metal Defects in the Assembly Induced Emission of Cu Nanoclusters. aug: au: Zhennan Wu Huiwen Liu Tingting Li Jiale Liu Jun Yin Mohammed, Omar F. Bakr, Osman M. Yi Liu Bai Yang Hao Zhang affil: State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China Division of Physical Sciences and Engineering, KAUST Solar Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia su: Copper Metal clusters Nanochemistry Clustering of particles Charge transfer sug: subj: Copper Metal clusters Nanochemistry Clustering of particles Charge transfer ab: Aggregation/assembly induced emission (AIE) has been observed for metal nanoclusters (NCs), but the origin of the enhanced emission is not fully understood, yet. In this work, the significant contribution of metal defects on AIE is revealed by engineering the self-assembly process of Cu NCs using ethanol. The presence of ethanol leads to a rapid assembly of NCs into ultrathin nanosheets, promoting the formation of metal defects-rich surface. Detailed studies and computer simulation confirm that the metal defects-rich nanosheets possess increased Cu(I)-to-Cu(0) ratio, which greatly influences ligand-to-metal-metal charge transfer and therewith facilitates the radiative relaxation of excitons. Consequently, the Cu NCs self-assembly nanosheets exhibit obvious emission enhancement. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2017 holdings: @attributes: islocal: N |
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