Modulation Of Electronic Properties In Laterally And Commensurately Repeating Graphene And Boron Nitride Composite Nanostructures
| Autor: | Engin Durgun, Salim Ciraci, V. Ongun Özçelik |
|---|---|
| Přispěvatelé: | Çıracı, Salim, Durgun, Engin |
| Rok vydání: | 2015 |
| Předmět: |
Resonant tunneling
Energy ranges Electric fields Materials science Band gap Composite number Nanotechnology Charge separations 02 engineering and technology Nitride 01 natural sciences Nitrides law.invention chemistry.chemical_compound law Yarn 0103 physical sciences Electrical conductivity Single wall nanotubes Physical and Theoretical Chemistry 010306 general physics Hexagonal boron nitride (h-BN) Two Dimensional (2 D) business.industry Graphene Composite materials 021001 nanoscience & nanotechnology Energy gap Surfaces Coatings and Films Electronic Optical and Magnetic Materials Boron nitride Honeycomb structure General Energy Semiconductor chemistry Narrow conductors Electronic properties Composite nanostructures Optoelectronics Honeycomb structures 0210 nano-technology business Graphene nanoribbons |
| Zdroj: | Journal of Physical Chemistry C The Journal of Physical Chemistry C |
| Popis: | Graphene and hexagonal boron nitride (h-BN) nanoribbons of diverse widths and edge geometries are laterally repeated to form commensurate, single-layer, hybrid honeycomb structures. The resulting composite materials appear as continuous, one atom thick stripes of graphene and BN having the average mechanical properties of constituent structures. However, depending on the widths of constituent stripes they can be metal or semiconductor with band gaps in the energy range of the visible light. These two-dimensional (2D) composite materials allow strong dimensionality in electrical conductivity and undergo transition from 2D to one-dimensional (1D) metal in a 2D medium, resulting in multichannel narrow conductors. As for the composite ribbons, such as one dielectric BN stripe placed between two graphene stripes with bare zigzag edges, charge separation of opposite polarity is possible under applied electric field and they exhibit resonant tunneling effects at nanoscale. Graphene/BN composite materials also form stable single-wall nanotubes with zigzag or armchair geometries. |
| Databáze: | OpenAIRE |
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