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Graphene (Graphene) is a kind of composed of carbon atoms in single chip structure of the new material, is known in the world the most thin, the hardest nanomaterials. Because of its low resistivity, electron transfer speed, thus can be used to develop a thinner, conductive faster a new generation of electronic components or transistors. Because of graphene is essentially a transparent, good conductor, also suitable for manufacturing transparent touch screen, plate, or even the solar cell.
Preparation of graphene's general method in the high temperature furnace zhongtong into carbon gas, make graphene precipitation on copper or nickel and other metals, but to really use graphene, also need to put it on the metal transfer to the silicon wafer or polymer thin film substrate, such as the process more complex than a graphene, and could damage and pollution of graphene.
MIT technicians recently released a new transfer method, can greatly improve the efficiency of the transfer process. Their approach is to create a kind of metal sandwich panels and make graphene precipitation on both sides of the metal and not like the original only in one side. Attach the sandwich panels on a piece of glass. Stripping metal and graphene and graphene is directly on the glass, the glass can be used for TV or mobile screen manufacturing.
This method is not only limited to use glass, can be used in production of solar cells, flexible material or directly on the silicon chip.
Experiments have proved the effectiveness of the proposed method now, the next step to do is to further enhance the production of high-quality graphene. This technique may be in touch in the future, solar cells, and other fields caused a series of far-reaching chain reaction.