Graphene Standard：ISO80004-13 ST
Definition of graphene：Single layer can be called graphene
Few layers of graphene materials：Below 5 layers
Multilayer graphene material：Below 10 floors
→ Single layer Graphene is in the form of a single layer of atoms in a two-dimensional hexagonal lattice
→ Spread out multi-wall or single-wall carbon nanotube can form multi-layer or single-layer Graphene
→ Single layer graphene is the basic structure of all carbon materials
→ Folding single layer graphene into a ball: Buckyball
石墨烯前軀體
多層石墨烯
單層石墨烯
Characteristics and structure of graphene
■ Special characteristics and structure
◆ Specific Surface area：
> 2630 m2/g
2x Bigger than CNT
◆ Diameter to thickness ：
at least 1000:1
10x larger than CNT
◆ Gas Barrier：
Two dimensional
◆ Mechanic Strength：
similar to CNT
200x compare to steel
◆ Inner Resistor：
10 E – 6 Ohm.cm
Near Silver
◆ Thermal Conductivity：
> 5000 W/mK
Similar to single-wall CNT
◆ Transparency：
Each layer just reduce 2.3% transmittance
◆ Electron mobility：
200,000 cm2/V.s
10x ~ 100x of CN
◆ Purity：
> 99.5 – 99.99 wt%
Higher than CNT (<wt98%)
■ Most of so called ‘Graphene’ in the market is not real graphene, just some kind of aggregation of graphene precursor materials.
AIG GRAPHENE
■ AIG Graphene ➙ Amazing Instant Graphene
■ Amazing Instant Graphene （AIG）
→ The most difficult bottleneck of graphene technology is dispersion. There are Van der Waals force to let nano graphene integrated together.
→ For example, 50 years ago the milk powder is very difficult to disperse in hot water. New invented ‘Instant Milk’ can easily disperse in hot water.
→ ACOOL AIG Graphene is pre-dispersed, it can be easily dispersed in Organic or Inorganic materials. ACOOL AIG graphene already be applied in many application fields.