Controlling the formation of Au nanoparticles using functionalized molecular buffer layers

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Guo, Q and Sun, X and Chen, Yu and Palmer, R.E. (2002) Controlling the formation of Au nanoparticles using functionalized molecular buffer layers. Surface Science, 497 (1-3). pp. 269-274. ISSN 0039-6028 (https://doi.org/10.1016/S0039-6028(01)01653-3)

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Abstract

Nanoparticles of gold are produced by evaporation of gold atoms onto functionalized self-assembled monolayers (SAMs). SAMs of dodecanethiol (DT) and mercaptoundecanoic acid (MUA) on Au(1 1 1) are used as substrates and the gold particles are imaged with a scanning tunneling microscope. Gold atoms evaporated on DT monolayers diffuse rapidly to the interface between the molecular layer and the gold substrate where they form two-dimensional islands of 1 ML in height. In the case of monolayers of MUA, the strong interaction between evaporated gold and the acid group of the molecule gives rise to effective pinning of the gold atoms on top of the molecular layer and leads to the growth of three-dimensional gold nanocrystals.

  • Item type:Article
    ID code:35389
    Dates:
    Date
    Event
    20 January 2002
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:04 Nov 2011 11:41
    Last modified:11 Nov 2024 09:58
    URI:https://strathprints.strath.ac.uk/id/eprint/35389
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