CHEMICALLY DERIVED ULTRASMOOTH GRAPHENE NANORIBBON SEMICONDUCTORS PDF

We developed a chemical route to produce graphene nanoribbons GNR with width below 10 nanometers, as well as single ribbons with varying widths along their lengths or containing lattice-defined graphene junctions for potential molecular electronics. The GNRs were solution-phase-derived, stably suspended in solvents with noncovalent polymer functionalization, and exhibited ultrasmooth edges with possibly well-defined zigzag or armchair-edge structures. Electrical transport experiments showed that, unlike single-walled carbon nanotubes, all of the subnanometer GNRs produced were semiconductors and afforded graphene field effect transistors with on-off ratios of about 10 7 at room temperature. This site needs JavaScript to work properly. Please enable it to take advantage of the complete set of features! Clipboard, Search History, and several other advanced features are temporarily unavailable.

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Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. A Nature Research Journal.

Large-scale graphene electronics requires lithographic patterning of narrow graphene nanoribbons for device integration. Here, we devised a gas phase chemical approach to etch graphene from the edges without damaging its basal plane.

Our controlled etching method opens up a chemical way to control the size of various graphene nano-structures beyond the capability of top-down lithography. Geim, A. The rise of graphene. Nature Mater. Graphene: status and prospects.

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B 22 , — Download references. The authors are grateful to J. Conway from the Stanford Nanofabrication Facility for helpful discussions. Both authors discussed the results and commented on the manuscript.

Correspondence to Hongjie Dai. Reprints and Permissions. Etching and narrowing of graphene from the edges. Nature Chem 2, — Download citation. Received : 10 December Accepted : 10 May Published : 27 June Issue Date : August Journal of Materials Chemistry C Nano Letters Progress in Materials Science Angewandte Chemie International Edition ChemNanoMat Advanced search.

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Chemically derived, ultrasmooth graphene nanoribbon semiconductors.

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: We developed a chemical route to produce graphene nanoribbons GNR with width below 10 nanometers, as well as single ribbons with varying widths along their lengths or containing lattice-defined graphene junctions for potential molecular electronics. The GNRs were solution-phase-derived, stably suspended in solvents with noncovalent polymer functionalization, and exhibited ultrasmooth edges with possibly well-defined zigzag or armchair-edge structures. View on PubMed.

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Chemically Derived, Ultrasmooth Graphene Nanoribbon Semiconductors

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