A group of national and international researchers have demonstrated an on-chip visible light source using graphene as a filament. The team attached small strips of graphene to metal electrodes, suspended the strips above the substrate, and passed a current through the filaments.
“We’ve created what is essentially the world’s thinnest light bulb,” said James Hone, professor at Columbia Engineering, part of Columbia Univerity (New York) in a release. “This new type of ‘broadband’ light emitter can be integrated into chips and will pave the way towards the realization of atomically thin, flexible, and transparent displays, and graphene-based on-chip optical communications.”
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