graphene
E858270
Graphene is a single layer of carbon atoms arranged in a hexagonal lattice, known for its exceptional strength, electrical conductivity, and unique quantum electronic properties.
Statements (56)
| Predicate | Object |
|---|---|
| instanceOf |
allotrope of carbon
ⓘ
nanomaterial ⓘ two-dimensional material ⓘ |
| application |
batteries
ⓘ
composite materials ⓘ energy storage devices ⓘ flexible electronics ⓘ high-speed transistors ⓘ sensors ⓘ supercapacitors ⓘ transparent conductive electrodes ⓘ |
| atomicComposition | carbon atoms only ⓘ |
| bandStructure | Dirac cones at K and K' points ⓘ |
| bondAngle | 120 degrees (approximately) ⓘ |
| bondType | sp2 hybridized carbon-carbon bonds ⓘ |
| C-C bond length | about 1.42 Å ⓘ |
| chargeCarrier |
electrons
ⓘ
holes ⓘ |
| chemicalElement | carbon ⓘ |
| density | low areal density ⓘ |
| dimensionality | 2D ⓘ |
| discoveredBy |
Andre Geim
NERFINISHED
ⓘ
Konstantin Novoselov NERFINISHED ⓘ |
| discovery | isolated and identified in 2004 ⓘ |
| discoveryMethod | mechanical exfoliation of graphite ⓘ |
| electricalProperty |
high carrier mobility
ⓘ
high electrical conductivity ⓘ massless Dirac fermion charge carriers ⓘ zero band gap (semimetal) ⓘ |
| latticeConstant | about 2.46 Å ⓘ |
| mechanicalProperty |
flexible
ⓘ
high Young’s modulus ⓘ very high tensile strength ⓘ |
| nobelLaureate |
Andre Geim
NERFINISHED
ⓘ
Konstantin Novoselov NERFINISHED ⓘ |
| nobelPrizeRelated | 2010 Nobel Prize in Physics awarded for experiments with graphene ⓘ |
| opticalProperty |
absorbs about 2.3% of visible light per layer
ⓘ
almost transparent ⓘ |
| parentMaterial | graphite ⓘ |
| quantumProperty |
anomalous quantum Hall effect
ⓘ
relativistic-like charge carriers ⓘ |
| relatedMaterial |
carbon nanotube
ⓘ
fullerene ⓘ graphene oxide ⓘ reduced graphene oxide ⓘ |
| stability | thermodynamically stable as part of graphite ⓘ |
| structure |
hexagonal lattice
ⓘ
honeycomb lattice ⓘ single layer of carbon atoms ⓘ |
| symmetry | hexagonal symmetry ⓘ |
| synthesisMethod |
chemical reduction of graphene oxide
ⓘ
chemical vapor deposition ⓘ epitaxial growth on silicon carbide ⓘ liquid-phase exfoliation of graphite ⓘ |
| thermalProperty | very high thermal conductivity ⓘ |
| thickness | one atom thick ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.