Electrical properties of micrometric metallic dots obtained by porous polymeric membranes

M. Barra (), A. Cassinese, F. Chiarella, W. Goedel, D. Marczewski, P. Tierno and R. Vaglio

The European Physical Journal B: Condensed Matter and Complex Systems, 2005, vol. 46, issue 4, 497-500

Abstract: We report on the fabrication of micrometric regular metallic arrays obtained by using, as a template, a polymeric membrane with regular pores. The membranes were prepared by embedding hydrophobized silica colloids into a polymer layer and subsequently removing them. We have investigated the electronic transport properties of the metallic arrays as a function of the applied electric field and temperature. Simple current voltage (IV) characteristics present a strong switching behavior with I ON /I OFF ratios up to 10 4 . Different temperature dependences of the resistance in the different ranges of the applied electric field have been observed. Finally, the performances of a field effect device (FET), with the conducting channel and insulating layer consisting of a Gold dot array and a STO substrate, respectively, have been investigated. The channel resistivity has been modified at least of two orders of magnitude and a mobility of about 2 cm 2 /V*s has been extracted by the analysis of the FET transfer curve. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005

Date: 2005
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DOI: 10.1140/epjb/e2005-00279-y

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