Thirteen years ago Andre Geim and Kostya Novoselovm— two researchers at the University of Manchester—isolated graphene for the first time.
Prior to that day scientists knew the one atom thick, 2D crystal material existed, but no one had worked out how to extract it from graphite.
During one of their weekly Friday night experiment sessions the duo removed flakes from a lump of bulk graphite with sticky tape and noticed that some flakes were thinner than others. They kept separating graphite fragments repeatedly until they created flakes that were just one atom thick.
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