Grafeno
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Publicado: 13 de marzo de 2011
Graphene: The Material that will Change the Way We Live
Graphene is a two dimensional new nanomaterial. It can be easily obtained from graphite, a material that is abundant on the Earth’s surface.Its propierties suggest a wide range of applications in electronic, computer sciences and ecology. It is expected to be heralded as one of the materials that will literally change our lives in the21st century. In this sense, the graphene is not only the thinnest possible material that is feasible, but it is also about 200 times stronger than steel, conducts electricity better than any materialknown to man and it is almost completely transparent.
The biggest problem of the chip engineers around the world is that everyone wants to increase power and make chips smaller. The development ofgraphene transistors would in theory be able to run at much greater speeds.
Some scientists have predicted that graphene could one day replace silicon, which is the current material used for thedesign for transistors.
Since it was discovered in 2004 the advances in the field of graphene have been spectacular. The old graphene transistors showed a very poor on-off ratio, but now researchers atIBM reported that they have been able to create graphene transistors with an on-off rate of 100 gigahertz, far exceeding the rates of previous attempts, and exceeding the speed of silicon. Graphenealso has the ideal propierties to be an excellent component of integrated circuits, because it has a high carrier mobility, as well as low noise, allowing it to be used as the channel in a field-effecttransistor. The issue is that single sheets of graphene are hard to produce, and even harder to make on top of an appropriate subsrate. Researchers are looking into methods of transfering singlegraphene sheets from their source of origin to a target subsrate of interest.
Other potential applications for the material include the replacing of carbon fibers in composite materials to eventually...
Graphene is a two dimensional new nanomaterial. It can be easily obtained from graphite, a material that is abundant on the Earth’s surface.Its propierties suggest a wide range of applications in electronic, computer sciences and ecology. It is expected to be heralded as one of the materials that will literally change our lives in the21st century. In this sense, the graphene is not only the thinnest possible material that is feasible, but it is also about 200 times stronger than steel, conducts electricity better than any materialknown to man and it is almost completely transparent.
The biggest problem of the chip engineers around the world is that everyone wants to increase power and make chips smaller. The development ofgraphene transistors would in theory be able to run at much greater speeds.
Some scientists have predicted that graphene could one day replace silicon, which is the current material used for thedesign for transistors.
Since it was discovered in 2004 the advances in the field of graphene have been spectacular. The old graphene transistors showed a very poor on-off ratio, but now researchers atIBM reported that they have been able to create graphene transistors with an on-off rate of 100 gigahertz, far exceeding the rates of previous attempts, and exceeding the speed of silicon. Graphenealso has the ideal propierties to be an excellent component of integrated circuits, because it has a high carrier mobility, as well as low noise, allowing it to be used as the channel in a field-effecttransistor. The issue is that single sheets of graphene are hard to produce, and even harder to make on top of an appropriate subsrate. Researchers are looking into methods of transfering singlegraphene sheets from their source of origin to a target subsrate of interest.
Other potential applications for the material include the replacing of carbon fibers in composite materials to eventually...
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