Inventions Current Affairs - 2019
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Researchers have created the world’s thinnest light bulb using graphene as filament.
It was created by team of scientist led by Young Duck Kim comprising members from Columbia University School of Engineering, Seoul National University and Korea Research Institute of Standards and Science.
Features of Bulb
- The bulb uses graphene, a perfectly crystalline form of carbon as a filament.
- The filament is attached to metal electrodes and suspended the strips above the substrate.
- After current is passed through filament it heats up to over 2,500° C and produces exceptionally bright light.
Applications: The new type of thinnest bulb can be used as broadband light emitter. It can also be integrated into chips which will pave the way towards the realisation of atomically flexible, thin and transparent displays. It will also help to boost graphene-based on-chip high speed optical communications.