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Nanoparticle arrays patterned by electron-beam writing : Structure, composition, and electrical properties

Plaza, J.L. and Chen, Yu and Jacke, S. and Palmer, R.E. (2005) Nanoparticle arrays patterned by electron-beam writing : Structure, composition, and electrical properties. Langmuir, 21 (4). pp. 1556-1559. ISSN 0743-7463

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Abstract

Direct electron beam writing in nanoparticle films is employed to create nanoscale wires between prepatterned gold electrodes on SiO2/Si wafers. Characterization of these nanowires using AFM, SEM, and EDX reveals a core/sheath morphology, where a gold-rich core is surrounded by a sheath which is mainly of carbon. Z-contrast STEM images indicate that the central core consists of a distribution of metal cores in a carbon network. The results suggest that the nanoparticle network is created through cross-linking of the ligands of adjacent particles. The high resistivities obtained in conductivity measurements are consistent with this picture. The work illustrates the ability to generate patterned nanoparticle arrays which can be addressed electrically.

Item type: Article
ID code: 31144
Keywords: nanoparticle films , nanoscale wires , gold-rich core, carbon network, Physics, Spectroscopy, Materials Science(all), Surfaces and Interfaces, Electrochemistry, Condensed Matter Physics
Subjects: Science > Physics
Department: Faculty of Science > Physics
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 01 Jul 2011 11:14
    Last modified: 05 Sep 2014 08:58
    URI: http://strathprints.strath.ac.uk/id/eprint/31144

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