Issue 6, 2012

Dielectric behavior of self-assembled monolayers on conducting metal oxides

Abstract

Pt top contacts have been deposited by pulsed laser deposition (PLD) onto bare and tetradecylphosphate (TDP) self-assembled monolayer (SAM)-modified Nb-doped SrTiO3 (Nb-STO) substrates. For the SAM-modified substrates, electrochemical Cu deposition occurred only at the places where electrical shorts existed between the top contact and the substrate. A nearly perfect yield of top contacts without shorts was obtained, which shows the dense packing and robustness of the SAM. The SAM decreased the leakage current about 500 times compared to the bare substrate. Alkylphosphate SAMs on conducting metal oxide substrates can therefore be used as dielectric thin films for device fabrication.

Graphical abstract: Dielectric behavior of self-assembled monolayers on conducting metal oxides

Supplementary files

Article information

Article type
Paper
Submitted
07 Oct 2011
Accepted
27 Oct 2011
First published
22 Nov 2011

J. Mater. Chem., 2012,22, 2405-2409

Dielectric behavior of self-assembled monolayers on conducting metal oxides

O. Yildirim, P. J. de Veen, M. G. Maas, M. D. Nguyen, D. N. Reinhoudt, D. H. A. Blank, G. Rijnders and J. Huskens, J. Mater. Chem., 2012, 22, 2405 DOI: 10.1039/C1JM15061H

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