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Home » A New World Composed of Graphene-Based Technology: 葉乃裳 Nai-Chang Yeh at TEDxTaoyuan (Transcript)

A New World Composed of Graphene-Based Technology: 葉乃裳 Nai-Chang Yeh at TEDxTaoyuan (Transcript)


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Nai-Chang Yeh

Here is the full transcript of Nai-Chang Yeh’s TEDx Talk: A New World Composed of Graphene-Based Technology at TEDxTaoyuan conference.

TRANSCRIPT: 

Carbon is an essential element of life, and is also one of the most abundant elements on earth. Carbon occupies a place in the second row of the periodic table, right above silicon.

A single carbon atom consists of 6 protons, 6 or 7 neutrons, and 6 electrons. A well-known example of carbon is the tip of pencils. The tip of pencils consists of graphite, which refers to a collection of carbon atoms, layers of carbon atoms. Each layer of the carbon atoms forms a honeycomb structure which is called graphene. Although scientists knew that graphene layers are the constituents for graphite, for years they were not sure whether a monolayer of graphene could be isolated in nature.

Until 2004, when two British physicists finally demonstrated that a single atomic layer of graphene can be isolated and stabilized in nature. These two physicists, Dr Novoselov and Dr Geim of Manchester University, not only demonstrated that graphene can be isolated and stabilized in nature, they also carried out detailed studies of the properties of graphene. They found that graphene exhibited very interesting and unique properties that could be promising for a wide range of applications. Therefore, their research ignited great excitement throughout the world.