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    pH-Induced Surface Modification of Atomically Precise Silver Nanoclusters: An Approach for Tunable Optical and Electronic Properties

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    Type
    Article
    Authors
    AbdulHalim, Lina G. cc
    Hooshmand, Zahra
    Parida, Manas R. cc
    Aly, Shawkat Mohammede cc
    Le, Duy
    Zhang, Xin
    Rahman, Talat S.
    Pelton, Matthew
    Losovyj, Yaroslav
    Dowben, Peter A.
    Bakr, Osman cc
    Mohammed, Omar F. cc
    Katsiev, Khabiboulakh
    KAUST Department
    Chemical Science Program
    Functional Nanomaterials Lab (FuNL)
    KAUST Catalysis Center (KCC)
    KAUST Solar Center (KSC)
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Ultrafast Laser Spectroscopy and Four-dimensional Electron Imaging Research Group
    Date
    2016-10-24
    Online Publication Date
    2016-10-24
    Print Publication Date
    2016-11-07
    Permanent link to this record
    http://hdl.handle.net/10754/622449
    
    Metadata
    Show full item record
    Abstract
    Noble metal nanoclusters (NCs) play a pivotal role in bridging the gap between molecules and quantum dots. Fundamental understanding of the evolution of the structural, optical, and electronic properties of these materials in various environments is of paramount importance for many applications. Using state-of-the-art spectroscopy, we provide the first decisive experimental evidence that the structural, electronic, and optical properties of Ag-44(MNBA)(30) NCs can now be tailored by controlling the chemical environment. Infrared and photoelectron spectroscopies clearly indicate that there is a dimerization between two adjacent ligands capping the NCs that takes place upon lowering the pH from 13 to 7.
    Citation
    AbdulHalim LG, Hooshmand Z, Parida MR, Aly SM, Le D, et al. (2016) pH-Induced Surface Modification of Atomically Precise Silver Nanoclusters: An Approach for Tunable Optical and Electronic Properties. Inorganic Chemistry 55: 11522–11528. Available: http://dx.doi.org/10.1021/acs.inorgchem.6b02067.
    Sponsors
    This work was supported by King Abdullah University of Science and Technology (KAUST), and part of this work was supported by Saudi Arabia Basic Industries Corporation (SABIC) grant RGC/3/2470-01. The work at U Nebraska was partly supported by the U. S. Department of Energy through grant #DE-FG02-07ER15842. This work was performed, in part, at the Center for Nanoscale Materials, a U.S. Department of Energy Office of Science User Facility under Contract No. DE-AC02-06CH11357. DFT calculations (ZH, DL, and TSR) were performed at the UCF Advanced Research Computing Center and partially supported by NSF grant CHE-1310327. We thank Sampyo Hong for fruitful discussions.
    Publisher
    American Chemical Society (ACS)
    Journal
    Inorganic Chemistry
    DOI
    10.1021/acs.inorgchem.6b02067
    Additional Links
    http://pubs.acs.org/doi/abs/10.1021/acs.inorgchem.6b02067
    ae974a485f413a2113503eed53cd6c53
    10.1021/acs.inorgchem.6b02067
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Chemical Science Program; Material Science and Engineering Program; KAUST Catalysis Center (KCC); KAUST Solar Center (KSC)

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