Circular Arrays of Gold Nanoparticles of a Single Particle Line Thickness Formed on Indium Tin Oxide

Highly controlled arrays of gold nanoparticles (AuNPs) were fabricated on optically transparent indium tin oxide (ITO) substrates by combining atomic force microscope (AFM) lithography and surface modification using self-assembled monolayers (SAMs). The nanopatterns of methyl and amino groups were f...

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Bibliographic Details
Published in:Applied physics express 2012-02, Vol.5 (2), p.025202-025202-3
Main Authors: Yang, Jeonghyeon, Ichii, Takashi, Murase, Kuniaki, Sugimura, Hiroyuki
Format: Article
Language:English
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Summary:Highly controlled arrays of gold nanoparticles (AuNPs) were fabricated on optically transparent indium tin oxide (ITO) substrates by combining atomic force microscope (AFM) lithography and surface modification using self-assembled monolayers (SAMs). The nanopatterns of methyl and amino groups were fabricated on ITO substrates and AuNPs were assembled just on the amino-terminated nanopatterns, which is based on the different affinities of the AuNPs for the functional groups. The site selectivity was intensively improved by dehydration and repairing defects in a long alkylsilane SAM with short alkylsilane molecules.
ISSN:1882-0778
1882-0786
DOI:10.1143/APEX.5.025202