Contribution of Metal Defects in the Assembly Induced Emission of Cu Nanoclusters

Handle URI:
http://hdl.handle.net/10754/623813
Title:
Contribution of Metal Defects in the Assembly Induced Emission of Cu Nanoclusters
Authors:
Wu, Zhennan; Liu, Huiwen; Li, Tingting; Liu, Jiale; Yin, Jun; Mohammed, Omar F. ( 0000-0001-8500-1130 ) ; Bakr, Osman M. ( 0000-0002-3428-1002 ) ; Liu, Yi ( 0000-0003-0548-6073 ) ; Yang, Bai ( 0000-0002-3873-075X ) ; Zhang, Hao ( 0000-0002-2373-1100 )
Abstract:
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.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Wu Z, Liu H, Li T, Liu J, Yin J, et al. (2017) Contribution of Metal Defects in the Assembly Induced Emission of Cu Nanoclusters. Journal of the American Chemical Society 139: 4318–4321. Available: http://dx.doi.org/10.1021/jacs.7b00773.
Publisher:
American Chemical Society (ACS)
Journal:
Journal of the American Chemical Society
Issue Date:
20-Mar-2017
DOI:
10.1021/jacs.7b00773
Type:
Article
ISSN:
0002-7863; 1520-5126
Sponsors:
This work was supported by NSFC (51425303), the National key research and development program of China (2016YFB0401701), the 973 Program of China (2014CB643503), and the Special Project from MOST of China.
Additional Links:
http://pubs.acs.org/doi/full/10.1021/jacs.7b00773
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorWu, Zhennanen
dc.contributor.authorLiu, Huiwenen
dc.contributor.authorLi, Tingtingen
dc.contributor.authorLiu, Jialeen
dc.contributor.authorYin, Junen
dc.contributor.authorMohammed, Omar F.en
dc.contributor.authorBakr, Osman M.en
dc.contributor.authorLiu, Yien
dc.contributor.authorYang, Baien
dc.contributor.authorZhang, Haoen
dc.date.accessioned2017-05-31T11:23:07Z-
dc.date.available2017-05-31T11:23:07Z-
dc.date.issued2017-03-20en
dc.identifier.citationWu Z, Liu H, Li T, Liu J, Yin J, et al. (2017) Contribution of Metal Defects in the Assembly Induced Emission of Cu Nanoclusters. Journal of the American Chemical Society 139: 4318–4321. Available: http://dx.doi.org/10.1021/jacs.7b00773.en
dc.identifier.issn0002-7863en
dc.identifier.issn1520-5126en
dc.identifier.doi10.1021/jacs.7b00773en
dc.identifier.urihttp://hdl.handle.net/10754/623813-
dc.description.abstractAggregation/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.en
dc.description.sponsorshipThis work was supported by NSFC (51425303), the National key research and development program of China (2016YFB0401701), the 973 Program of China (2014CB643503), and the Special Project from MOST of China.en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/full/10.1021/jacs.7b00773en
dc.titleContribution of Metal Defects in the Assembly Induced Emission of Cu Nanoclustersen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJournal of the American Chemical Societyen
dc.contributor.institutionState Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, People's Republic of China.en
kaust.authorWu, Zhennanen
kaust.authorYin, Junen
kaust.authorMohammed, Omar F.en
kaust.authorBakr, Osman M.en
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