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    Shape-controlled synthesis of three-dimensional branched CdS nanostructure arrays: Structural characteristics and formation mechanism

    Access Status
    Fulltext not available
    Authors
    Shen, Q.
    Xue, J.
    Liu, Jian
    Jia, H.
    Liu, X.
    Xu, B.
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Shen, Q. and Xue, J. and Liu, J. and Jia, H. and Liu, X. and Xu, B. 2013. Shape-controlled synthesis of three-dimensional branched CdS nanostructure arrays: Structural characteristics and formation mechanism. CrystEngComm. 15 (5): pp. 1007-1014.
    Source Title
    CrystEngComm
    DOI
    10.1039/c2ce26655e
    ISSN
    1466-8033
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/52039
    Collection
    • Curtin Research Publications
    Abstract

    Through a combination of electrodeposition and subsequent solvothermal reaction, three-dimensional (3D) branched CdS nanostructure arrays were fabricated by nanowires self-assembly in ethanediamine solution containing thiourea and hexamethylenetetramine (HMTA) for the first time, where HMTA acted as a capping agent. In the absence of HMTA, only disordered CdS nanowires were obtained. The reaction conditions influencing the synthesis of 3D branched CdS nanostructure arrays, such as the concentration of HMTA and thiourea, reaction temperature and reaction time, were studied and optimized. The 3D branched CdS nanostructure arrays were characterized by X-ray diffraction, field emitting scanning electron microscopy and transmission electron microscopy. The results show that HMTA played an important role in the formation of 3D branched CdS nanostructure arrays. A growth process of HMTA-assisted gradual crystallization and subsequent oriented attachment was proposed as a plausible mechanistic interpretation for the formation of the 3D branched nanostructure arrays. In addition, the photoluminescence property of the novel 3D branched CdS nanostructure arrays was investigated. © 2013 The Royal Society of Chemistry.

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