Ambipolar Charge Transport in DNA Molecules

descriptionPublicationkeyboard_double_arrow_right Article 04 Apr 2008 China (People's Republic of) English Publisher:WileyJournal:Advanced Materials, volume 20, pages 1,258-1,262 (issn: 0935-9648, eissn: 1521-4095,

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Authors: Yan, SC; Che, CM; Wu, JC; Yan, B; Chao, CT; Ko, BCB; Wong, ELM; +1 Authors

doi: 10.1002/adma.200701179

handle: 10722/70470

Ambipolar Charge Transport in DNA Molecules

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Abstract

The electrical transport properties of DNA films in field‐effect transistor structure are analyzed. As‐depositedfilms did not show electrical conductivity; no DNA network wasobserved between the DNA moleculesbridging the electrodes. When the DNA molecules were stretchedinto a thin film an interpenetratingnetwork formed, and the devicesshowed pronounced field‐effects withambipolar behavior. Devices producedby electrostatic trapping of DNA molecules exhibited large bulk parallelcurrents and relatively small field effects.

Country

China (People's Republic of)

Related Organizations

National Changhua University of Education
Taiwan
University of Hong Kong (香港大學)
China (People's Republic of)
University of Hong Kong
China (People's Republic of)

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