2009
DOI: 10.1126/science.1168255
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Conductance of a Single Conjugated Polymer as a Continuous Function of Its Length

Abstract: The development of electronic devices at the single-molecule scale requires detailed understanding of charge transport through individual molecular wires. To characterize the electrical conductance, it is necessary to vary the length of a single molecular wire, contacted to two electrodes, in a controlled way. Such studies usually determine the conductance of a certain molecular species with one specific length. We measure the conductance and mechanical characteristics of a single polyfluorene wire by pulling … Show more

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Cited by 499 publications
(512 citation statements)
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References 27 publications
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“…Moreover, the combination of polymers with nanometer-scale devices (nanodevices) offers a scope to introduce the properties associated with conjugated polymers into such nanodevices. This field presently draws attention globally, and is undergoing rapid advancement (e.g., a very recently published work by Joachim et al [179] ) promisingly for the next generation of electronic devices. Since conjugated polymers are cheaply available, and have special simple film forming ability (e.g., spin-coating) as well as excellent flexibility, they have great potential in the applications of nanodevices.…”
Section: Applicationsmentioning
confidence: 99%
“…Moreover, the combination of polymers with nanometer-scale devices (nanodevices) offers a scope to introduce the properties associated with conjugated polymers into such nanodevices. This field presently draws attention globally, and is undergoing rapid advancement (e.g., a very recently published work by Joachim et al [179] ) promisingly for the next generation of electronic devices. Since conjugated polymers are cheaply available, and have special simple film forming ability (e.g., spin-coating) as well as excellent flexibility, they have great potential in the applications of nanodevices.…”
Section: Applicationsmentioning
confidence: 99%
“…While the importance of atomic structure and bonding for transport through single-molecule junctions has repeatedly been emphasized, investigations with atomic-scale control of the junction geometry are scarce. Recent scanning tunneling microscope (STM) experiments have provided structural information about the electrodes and the orientation of contacted molecules with atomic precision [12][13][14][15][16]. This opens an avenue for understanding and controlling the current flow through single molecules by combining transport measure ments with the atomic manipulation capabilities of a STM.…”
Section: Atomic-scale Control Of Electron Transport Through Single Momentioning
confidence: 99%
“…2 Studies on various -conjugated molecules have been performed. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] The molecules, with delocalized electrons due to sp 2 hybridized carbon atoms, exhibit a smaller energy gap between the highest occupied molecular orbital ͑HOMO͒ and the lowest unoccupied molecular orbital ͑LUMO͒. For -conjugated molecules longer than ϳ3 nm hopping conduction was observed.…”
Section: Electrical Characteristics Of Conjugated Self-assembled Monomentioning
confidence: 99%