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March 22nd, 2011

Standing wheelchair spotlighted at science show

Meanwhile, GrapheneX is a basic building block for carbon nanomaterials such as 0D buckball, 1D carbon nanotubes and 2D graphite. It has several advantages, such as providing large 2D electrical conductivity, a large surface area, high elasticity, high thermal conductivity and transparency as well as a tuneable band gap.

It also has high mechanical strength, being almost 200 times stronger than steel and, more importantly, it is based on graphite, which is commercially available at a low cost.

The director of the Nanoelectronics and Microelectromechanical Systems Laboratory at the National Electronics and Computer Technology Centre (Nectec), Adisorn Tuantranont, said his research team had come up with a proprietary formula for synthesising graphene polymer conductive ink by using a method called electrolytic exfoliation.

It can be used as a transparent electrode to replace indium tin oxide (ITO) in flexible displays.

"When Thailand has uplifted its capability in graphene-based electronic-device technology, we will be able to use it not only for displays but also to build nanotransistors down to 10 nanometres, with 100GHZ and memory devices," he said.

Graphene also provides a large surface area that is suitable for electrochemical sensors and molecular-gas sensors because it boosts sensor sensitivity by more than 50 per cent, he said.


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