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Graphene And Transistors

wallpapers Tech 2020-12-24
Graphene is a two-dimensional carbon nanomaterial with a hexagonal honeycomb lattice composed of carbon atoms and sp² hybrid orbitals.
 
Graphene has excellent optical, electrical, and mechanical properties, and has important application prospects in materials science, micro-nano processing, energy, biomedicine, and drug delivery. It is considered a revolutionary material in the future.
 
Transistor
 
Graphene can be used to make transistors. Due to the high stability of the graphene structure, this type of transistor can still work stably on the scale of a single atom. In contrast, the current silicon-based transistors will lose their stability on the scale of about 10 nanometers; the ultra-fast reaction speed of electrons in graphene to the external field makes the transistors made of it can reach Very high operating frequency. For example, IBM announced in February 2010 that the operating frequency of graphene transistors has been increased to 100 GHz, which exceeds that of silicon transistors of the same size.

 
Flexible display
 
At the Consumer Electronics Show, flexible screens have attracted much attention and become the development trend of mobile device displays in the future. The future market of flexible display is broad, and the prospect of graphene as a basic material is also promising. South Korean researchers have produced for the first time a flexible transparent display composed of multilayer graphene and a glass fiber polyester sheet substrate. Researchers from South Korea's Samsung and Sungkyunkwan University have fabricated a piece of pure graphene the size of a TV on a 63 cm wide flexible transparent glass fiber polyester board. They said this is by far the largest graphene block "bulk". Subsequently, they used the graphene block to create a flexible touch screen. Researchers say that in theory, people can roll up their smartphones and pin them behind their ears like a pencil.

Tag: Graphene