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Charge transport property of mesoporous silica thin films incorporated with gold nanoparticles



Charge transport property of mesoporous silica thin films incorporated with gold nanoparticles



Journal of Nanoscience and Nanotechnology 13(4): 2589-2594



Highly ordered mesoporous silica thin films (MSTFs) were spin-coated on Si wafers by self-assemble of water-soluble nanocrystal micelles with soluble silica. The gold nanoparticles (GNPs) were assembled within the silica matrix. Based on this nanocomposite, nanoscale electrodes were fabricated to form single electron devices. Two main transport behaviors of resemblant Coulomb blockage were demonstrated in the current-voltage measurements. The Coulomb island size calculated from the current-voltage data was close to the real size of the GNPs. The random loading positions of GNPs in the MSTF, which lead to uncertain tunneling resistances, might be response for the conductive differences.

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Accession: 052042546

Download citation: RISBibTeXText

PMID: 23763133

DOI: 10.1166/jnn.2013.7353


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