Graphene is a form of carbon, just like diamond and graphite. It is made of a honeycomb shaped sheet of single layer of carbon atoms. Researchers from the Indian Institute of Science and University of Alabama have studied this material for its property of conducting electricity. Their study indicates that electrons can flow easily on the edges of graphene making it a very good conductor of electricity.
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Graphene, also called a “wonder material” is increasingly being used in the field of electronics due to its lightweight and electrical properties. Now, researchers at the Indian Institute of Science, Bangalore, have identified a potential drawback in graphene transistors that have metal contact leads. The metal atoms in the contacts react with graphene atoms, creating an unwanted disturbance or noise in the electronic circuit. This discovery may have major implications on using graphene for futuristic electronic applications.
A new type of “Field Emission Device”, used routinely in your flat screen displays, has been developed. Using ribbons made of graphene, a form of carbon, researchers at IISc have shown its potential application as a pressure sensor. This new device is not only energy saving, but also highly stable; their fabrication is also easily scalable and easy to manufacture in large quantities.