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www.dailymail.co.uk_sciencetech 2015 02364.txt.txt

#World's smallest light bulb is 1 atom thick and could help in super-thin TV development By Colin Fernandez for the Daily mail Published: 18:16 GMT, 15 june 2015 Updated: 20:26 GMT, 15 june 2015 Scientists have created the world's thinnest light bulb using the wonder material graphene, in a layer just one atom thick. Graphene a form of carbon has been heralded as having a vast range of uses. The ability for the super-thin material to produce light is seen as a key step to create super-thin computer and TV screens. Scroll down for video The'bulb'was created by attaching a small strip of'atomically thin'graphene, acting as a filament, to metal electrodes. When they passed a current through it the graphene lit up. James Hone, professor of mechanical engineering at Columbia University said:''We've created what is essentially the world's thinnest light bulb.''He added that the light'will pave the way towards the realisation of atomically thin, flexible and transparent displays'.'The filament, despite being tiny, is visible to the naked eye when it is on. The graphene reaches very high temperatures of 2, 500°C but does not melt the electrodes because the'hot spot'is restricted to the centre of the filament. Yun Daniel Park, of Seoul National University said that carbon was one of the earliest filaments used when light bulbs were invented.''Edison originally used carbon as a filament for his light bulb and here we are going back to the same element, but using it in its pure form graphene and at its ultimate size limit one atom thick.''Graphene, discovered in the UK, is composed of carbon atoms linked in a hexagonal lattice. Its incredible properties include being 200 times stronger than steel by weight, conducting electricity and being nearly transparent. The discovery of graphene in 2004 by Andre Geim and Konstantin Novoselov, two Russian-born scientists at the University of Manchester, earned the pair the Nobel prize for Physics and knighthoods. In 2014, a National Graphene Institute was set up in Manchester, with more than £60 million ($94 million) of funding to find uses for the substance f

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