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    SnSe Nanocrystals: Synthesis, Structure, Optical Properties, and Surface Chemistry

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    Type
    Article
    Authors
    Baumgardner, William J.
    Choi, Joshua J.
    Lim, Yee-Fun
    Hanrath, Tobias
    Date
    2010-07-21
    Permanent link to this record
    http://hdl.handle.net/10754/599651
    
    Metadata
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    Abstract
    The colloidal synthesis of SnSe nanoparticles is accomplished through the injection of bis[bis(trimethylsilyl)amino]tin(II) into hot trioctylphosphine: selenium in the presence of oleylamine. Through the manipulation of reaction temperature particles are grown with the average diameter reliably tuned to 4-10 nm. Quantum confinement is examined by establishing a relationship between particle size and band gap while the in depth growth dynamics are illuminated through UV-vis-NIR spectroscopy. Surface chemistry effects are explored, including the demonstration of useful ligand exchanges and the development of routes toward anisotropic particle growth. Finally, transient current-voltage properties of SnSe nanocrystal films in the dark and light are examined. © 2010 American Chemical Society.
    Citation
    Baumgardner WJ, Choi JJ, Lim Y-F, Hanrath T (2010) SnSe Nanocrystals: Synthesis, Structure, Optical Properties, and Surface Chemistry. Journal of the American Chemical Society 132: 9519–9521. Available: http://dx.doi.org/10.1021/ja1013745.
    Sponsors
    We thank the KAUST-CU Center for Energy and Sustainability for support. TEM and XRD characterization was performed at the Cornell Center for Materials Science. We thank the Dichtel research group at Cornell for use of their spectrophotometer. We thank Prof. Hector Abruna and Stephen Burkhardt for helpful discussions and assistance with cyclic voltammetry measurements.
    Publisher
    American Chemical Society (ACS)
    Journal
    Journal of the American Chemical Society
    DOI
    10.1021/ja1013745
    PubMed ID
    20578741
    ae974a485f413a2113503eed53cd6c53
    10.1021/ja1013745
    Scopus Count
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