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Reversible Metal-Semiconductor Transition of ssDNA-Decorated Single-Walled Carbon Nanotubes

A field effect transistor (FET) measurement of a SWNT shows a transition from a metallic one to a p-type semiconductor after helical wrapping of DNA. Water is found to be critical to activate this metal-semiconductor transition in the SWNT-ssDNA hybrid. Raman spectroscopy confirms the same change in electrical behavior. According to our ab initio calculations, a band gap can open up in a metallic SWNT with wrapped ssDNA in the presence of water molecules due to charge transfer.

preprint2010arXivOpen access
Misun ChaSeungwon JungMoon-Hyun ChaGunn KimJisoon IhmJungHoon Lee
cond-mat.mes-hallcond-mat.mtrl-sci
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Open access6 authors2 topics
Imported metadata coverageMissing code, dataset, citation and institution fields are tracked without dominating the paper.Details
Citations: 0Reviews: 0Saves: 0Code: not linkedDataset: not linkedInstitutions: 0

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Misun ChaSeungwon JungMoon-Hyun ChaGunn KimJisoon IhmJungHoon Lee

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