World’s first thinnest light bulb created using graphene

Here is the thinnest light bulb made from atomically thin which is a crystalline form of carbon that is graphene. graphene bulb image 2

Major scientists got together to give this a project a success based on graphene. It was led by Young Duck Kim, who is a postdoctoral research scientist at Columbia University School of Engineering. Another team was from Seoul National University, and las
tly, a team from Korea Research Institute of Standards and Science. As per the group of scientists, this was the first time that they displayed on-chip visible light source with made with the help of graphene as a filament. According to the scientists, they attached the small grapheme strips with that of metal electrodes. Then they suspended the strips above the substrate later they passed current across the filaments so as to heat them up. Know more about grapheme here

According to some experts, this kind of light emitter can be easily integrated into the chips which shall create atomically thin, transparent displays, flexible and grapheme inclined chip optical communications.

Currently the electric currents in semiconductors are integrated in the circuits. With the coming up of these lights in smaller structures made from graphene, one can develop fully integrated ‘photonic’ circuits.

Researchers have still not been able to find a way to put oldest artificial light source on to a chip.

There are talks around the circle of scientists that researchers haven’t yet been able to put the incandescent light bulb into a chip. This has happened because the light bulb filaments are required to be supremely hot approximately having thousands degrees Centigrade. As this is the amount required to glow within a visible range but the micro-scale metal wires are not able to take such extreme temperatures. Adding to it, the heat transfer coming from the hot filament into the environment is most efficient at the microscale range. Thus, it makes the structures unfeasible which further lead to the damage of the chip.

Ghraphene was even visible to naked eyes and paved way for successful optical communication.

The research scientists measured the range of the light being emitted from grapheme. This way, the research team came to a point that graphene could easily reach temperatures more than 2500 degrees Centigrade. The degree was hot enough to give a bright glow. Such light from grapheme is so intense that naked eyes could view it too with no requirement of additional magnification. Understand more about graphene at

During the demonstration, the team showcased their technique’s scalability by realizing large amount of graphene light emitters having chemical vapor deposits (CVD). At present, the research experts are working on facts like how fast can these be turned on or off to develop ‘bits’ for successful optical communications and how to create techniques to integrate them into the flexible substrates.


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