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Miguel D, Márquez IR, Álvarez de Cienfuegos L, Fuentes N, Rodríguez-Bolivar S, Cárdenas DJ, Mota AJ, Gómez-Campos F, Cuerva JM. Two-dimensional carbon-based conductive materials with dynamically controlled asymmetric Dirac cones. Phys Chem Chem Phys 2015; 17:31902-10. [PMID: 26568425 DOI: 10.1039/c5cp04631a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The design of two dimensional graphene-type materials with an anisotropic electron flow direction in the X- and Y-axes opens the door for the development of novel electronic materials with multiple functions in nanoelectronics. In the present work, we have studied the electronic transport properties of a new family of 2D graphene-graphyne hybrids presenting conformationally free phenylethylene subunits. This system ensures two different conductive pathways that are perpendicular to each other: an acene nanoribbon subunit, in the X-axis, with graphene-type conduction, and a free to rotate phenylethylene subunit, in the Y-axis, in which the magnitude of the conduction depends dynamically on the corresponding torsion angle. Our calculations have confirmed that this system presents two different conduction pathways, which are related to the presence of asymmetric Dirac-type cones. Moreover, the Dirac cones can be dynamically modified in the presence of an external gate electrode, which is unprecedented in the literature.
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Affiliation(s)
- Delia Miguel
- Department of Organic Chemistry, Faculty of Science, University of Granada, Granada, Spain.
| | - Irene R Márquez
- Department of Organic Chemistry, Faculty of Science, University of Granada, Granada, Spain.
| | | | - Noelia Fuentes
- Department of Organic Chemistry, Faculty of Science, University of Granada, Granada, Spain.
| | - Salvador Rodríguez-Bolivar
- Department of Electronic and Computer Technology, Faculty of Science, University of Granada, Granada, Spain.
| | - Diego J Cárdenas
- Department of Organic Chemistry, Universidad Autónoma de Madrid, Madrid, Spain
| | - Antonio J Mota
- Department of Inorganic Chemistry, Faculty of Science, University of Granada, Granada, Spain.
| | - Francisco Gómez-Campos
- Department of Electronic and Computer Technology, Faculty of Science, University of Granada, Granada, Spain.
| | - Juan M Cuerva
- Department of Organic Chemistry, Faculty of Science, University of Granada, Granada, Spain.
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Martín-Lasanta A, Álvarez de Cienfuegos L, Johnson A, Miguel D, Mota AJ, Orte A, Ruedas-Rama MJ, Ribagorda M, Cárdenas DJ, Carmen Carreño M, Echavarren AM, Cuerva JM. Novel ortho-OPE metallofoldamers: binding-induced folding promoted by nucleating Ag(i)–alkyne interactions. Chem Sci 2014. [DOI: 10.1039/c4sc01988a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Ag(i)–alkyne interactions induce the folding of o-OPE foldamers, yielding a new class of metallofoldamers.
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Affiliation(s)
- Ana Martín-Lasanta
- Department of Organic Chemistry
- Faculty of Science
- University of Granada
- Granada, Spain
| | | | - Alice Johnson
- Institute of Chemical Research of Catalonia (ICIQ)
- Tarragona, Spain
| | - Delia Miguel
- Department of Organic Chemistry
- Faculty of Science
- University of Granada
- Granada, Spain
| | - Antonio J. Mota
- Inorganic Chemistry
- Faculty of Science
- University of Granada
- Granada, Spain
| | - Angel Orte
- Department of Physical Chemistry
- Faculty of Pharmacy
- University of Granada
- Granada, Spain
| | | | - Maria Ribagorda
- Department of Organic Chemistry
- Universidad Autónoma de Madrid
- Madrid, Spain
| | - Diego J. Cárdenas
- Department of Organic Chemistry
- Universidad Autónoma de Madrid
- Madrid, Spain
| | - M. Carmen Carreño
- Department of Organic Chemistry
- Universidad Autónoma de Madrid
- Madrid, Spain
| | | | - Juan M. Cuerva
- Department of Organic Chemistry
- Faculty of Science
- University of Granada
- Granada, Spain
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