Molecular conductance switch-on of single ruthenium complex molecules.

Molecular conductance switch-on of single ruthenium complex molecules. Research Abstract Details 

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Molecular conductance switch-on of single ruthenium complex molecules. Abstract Text:

Kyoungja Seo,Alexander V Konchenko,Junghyun Lee,Gyeong Sook Bang,Hyoyoung Lee,Kyoungja Seo,Alexander V Konchenko,Junghyun Lee,Gyeong Sook Bang,Hyoyoung Lee,

Thiol-tethered RuII terpyridine complexes were synthesized for a voltage-driven molecular switch and used to understand the switch-on mechanism of the molecular switches of single metal complexes in the solid-state molecular junction in a vacuum. Molecularly resolved scanning tunneling microscopy (STM) images revealed well-defined single RuII complexes isolated in the highly ordered dielectric monolayer. When a negative sample-bias was applied, the threshold voltage to the high conductance state in the molecular junctions of the RuII complex was consistent with the electronic energy gap between the Fermi level of the gold substrate and the lowest ligand-centered redox state of the metal complex molecule. As an active redox center leading to conductance switching in the molecule, the lowest ligand-centered redox state of RuII complexes was suggested to trap an electron injected from the gold substrate. Our suggestions for a single-molecule switch-on mechanism in the solid state can provide guidance in a design that improves the charge-trapping efficiency of the ligands with different metal substrates.

Molecular conductance switch-on of single ruthenium complex molecules. Publishing Authors By Initials

K Seo,AV Konchenko,J Lee,GS Bang,H Lee,K Seo,AV Konchenko,J Lee,GS Bang,H Lee,

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Molecular conductance switch-on of single ruthenium complex molecules. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of the American Chemical Society

VOLUME: 130

Page Numbers: 2553-9

Journal Abbreviation: J. Am. Chem. Soc.

ISSN: 1520-5126

DAY: 6

MONTH: 02

YEAR: 2008

Molecular conductance switch-on of single ruthenium complex molecules. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Molecular conductance switch-on of single ruthenium complex molecules.

AFFILIATION: National Creative Research Initiative, Center for Smart Molecular Memory, Electronics and Telecommunications Research Institute (ETRI), 161 Gajeong-dong, Yuseong-gu, Daejeon 305-350, Korea.

Country: United States

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MEDLINETA: J Am Chem Soc

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