AVS 52nd International Symposium
    Electronic Materials and Processing Wednesday Sessions
       Session EM+SS-WeM

Paper EM+SS-WeM2
Towards Molecular Electronic Circuitry: Selective Deposition of Metals on Patterned Self-Assembled Monolayer Surfaces

Wednesday, November 2, 2005, 8:40 am, Room 309

Session: Contacts to Organic and Molecular Devices
Presenter: A.V. Walker, Washington University in St. Louis
Authors: C. Zhou, Washington University in St. Louis
G. Nagy, Washington University in St. Louis
A.V. Walker, Washington University in St. Louis
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We have developed a robust method by which to construct complex two- and three- dimensional structures based on controlling surface chemistry. This work has important applications in molecular and organic electronics, sensing, biotechnology, photonics and other technologies. Our method is extensible to many different types of materials, easily parallelized, affords precise nanoscale placement and is fully compatible with photolithographic fabrication processes. The method is based on the deposition of metals on UV-photopatterned self-assembled monolayers (SAMs). To demonstrate the method we have selectively vapor-deposited Mg on a patterned -CH@sub 3@/-COOH terminated alkanethiolate surface. The deposited metal penetrates through the -CH@sub 3@ SAM to the Au/S interface while reacting with the -COOH terminal group and accumulating on top of the other SAM.