Electromechanical properties of suspended Graphene Nanoribbons
arXiv:0905.0696 · doi:10.1021/nl900913c
Abstract
Graphene nanoribbons present diverse electronic properties ranging from semiconducting to half-metallic, depending on their geometry, dimensions and chemical composition. Here we present a route to control these properties via externally applied mechanical deformations. Using state-of-the-art density functional theory calculations combined with classical elasticity theory considerations, we find a remarkable Young's modulus value of ~7 TPa for ultra-narrow graphene strips and a pronounced electromechanical response towards bending and torsional deformations. Given the current advances in the synthesis of nanoscale graphene derivatives, our predictions can be experimentally verified opening the way to the design and fabrication of miniature electromechanical sensors and devices based on ultra-narrow graphene nanoribbons.
12 pages, 6 figures
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- How will freestanding borophene nanoribbons look like? An analysis of their possible structures, magnetism and transport properties
- Buckled circular monolayer graphene: a graphene nano-bowl
- Elastic properties of graphene flakes: boundary effects and lattice vibrations
- Graphene nanoribbons subject to gentle bends
- Bending-Induced Delamination of van der Waals Solids
- Nonresonant high frequency excitation of mechanical vibrations in graphene based nanoresonator
- Heat-to-Mechanical Energy Conversion in Graphene: Manifestation of Umklapp Enhancement with Strain
- Dynamic in situ Control of Heat Rectification in Graphene Nano Ribbons using Electric Field-induced Strain
- Consistent evaluation of continuum scale properties of Graphene