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Atomically defined angstrom-scale all-carbon junctions
- Source :
- Nature Communications, Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
- Publication Year :
- 2019
- Publisher :
- Nature Publishing Group UK, 2019.
-
Abstract
- Full-carbon electronics at the scale of several angstroms is an expeimental challenge, which could be overcome by exploiting the versatility of carbon allotropes. Here, we investigate charge transport through graphene/single-fullerene/graphene hybrid junctions using a single-molecule manipulation technique. Such sub-nanoscale electronic junctions can be tuned by band gap engineering as exemplified by various pristine fullerenes such as C60, C70, C76 and C90. In addition, we demonstrate further control of charge transport by breaking the conjugation of their π systems which lowers their conductance, and via heteroatom doping of fullerene, which introduces transport resonances and increase their conductance. Supported by our combined density functional theory (DFT) calculations, a promising future of tunable full-carbon electronics based on numerous sub-nanoscale fullerenes in the large family of carbon allotropes is anticipated.<br />All-carbon electronics holds promise beyond the conventional silicon-based electronics, but it remains challenging to manufacture them with well-defined structures thus tunability. Tan et al. control charge transport in single-molecule junctions using different fullerenes between graphene electrodes.
- Subjects :
- 0301 basic medicine
Fullerene
Materials science
Physics::Instrumentation and Detectors
Science
Heteroatom
General Physics and Astronomy
chemistry.chemical_element
02 engineering and technology
7. Clean energy
General Biochemistry, Genetics and Molecular Biology
Article
law.invention
03 medical and health sciences
law
Physics::Atomic and Molecular Clusters
lcsh:Science
Condensed Matter::Quantum Gases
Multidisciplinary
Graphene
Doping
Conductance
Charge (physics)
General Chemistry
021001 nanoscience & nanotechnology
030104 developmental biology
chemistry
Chemical physics
lcsh:Q
Density functional theory
0210 nano-technology
Carbon
Subjects
Details
- Language :
- English
- ISSN :
- 20411723
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Nature Communications
- Accession number :
- edsair.doi.dedup.....600489a849cdc7c7975834b5069ad882