Electrochemically controlled conductance switching in a single molecule: quinone-modified oligo(phenylene vinylene).
basic_science · Level V
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- Record sourced from PubMed, PMID 19206347.
- Also identified by DOI 10.1021/nn8002218.
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Abstract
Reversible conductance switching in single quinone-oligo(phenylene vinylene) (Q-OPV) molecules was demonstrated using electrochemical STM. The switching was achieved by application of electrochemical potential to the substrate supporting the molecule. The ratio of conductances between the high- and low-conductivity states is over 40. The high-conductivity state is ascribed to strong electron delocalization of the fully conjugated hydroquinone-OPV structure, whereas the low-conductivity state is characterized by disruption of electron delocalization in the quinone-OPV structure.
Medical subject headings
- Benzoquinones
- Crystallization
- Electrochemistry
- Nanostructures
- Signal Processing, Computer-Assisted
- Vinyl Compounds