Nanoscale wiring by controlled chain polymerization

Chain polymerization of amphiphilic diacetylene compounds in a monomolecular layer on a graphite substrate can be observed and controlled at a nanometer scale using a scanning tunneling microscope (STM). The wavelength dependence of photoreactivity suggests that the graphite substrate sensitizes the...

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Bibliographic Details
Published in:Surface science 2002-08, Vol.514 (1), p.41-47
Main Authors: Okawa, Y., Aono, M.
Format: Article
Language:English
Subjects:
Alkynes
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Graphite
Interface structure and roughness
Photochemistry
Physics
Scanning tunneling microscopy
Self-assembly
Solid surfaces and solid-solid interfaces
Surface chemical reaction
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
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Summary:Chain polymerization of amphiphilic diacetylene compounds in a monomolecular layer on a graphite substrate can be observed and controlled at a nanometer scale using a scanning tunneling microscope (STM). The wavelength dependence of photoreactivity suggests that the graphite substrate sensitizes the photoreaction. The chain polymerization can be initiated not only by irradiating light, but also by applying stimulation using an STM tip. We can also control the termination of chain polymerization by an artificial defect, so that we can create a polydiacetylene nanowire of designated length at any designated position.
ISSN:0039-6028
1879-2758
DOI:10.1016/S0039-6028(02)01605-9