World's Thinnest Light Bulb

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chandoo
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World's Thinnest Light Bulb

Postby chandoo » Jun 19, 2015 Views: 4592

A team of engineers and scientists has made use of the same element in its perfect crystalline form - graphene - to create world's thinnest light bulb. It is merely one atom thick and covers an area that is too small to be seen by naked eye, however, generates light bright enough that it can be seen with the naked eye.

Worlds Thinnest Light Bulb

Worlds Thinnest Light Bulb


David147
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Postby David147 » Jul 25, 2015

In the new study, the scientists used strips of graphene a few microns across and from 6.5 to 14 microns in length, each spanning a trench of silicon like a bridge. (A micron is one-millionth of a meter, where a hair is about 90 microns thick.) An electrode was attached to the ends of each graphene strip. Just like tungsten, run a current through graphene and the material will light up. But there is an added twist, as graphene conducts heat less efficiently as temperature increases, which means the heat stays in a spot in the center, rather than being relatively evenly distributed as in a tungsten filament.


jackluter
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Postby jackluter » Sep 07, 2016

By an imagination I come to know the light is emerging with best sparks. The thin light is best discovered



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