Researchers at the AIMEN Technology Center in Spain recently demonstrated a new technology for processing graphene materials using ultra-high-speed lasers, making it possible to produce graphene on a large scale. Research papers were published in Applied Physics Letters. Graphene has unique electronic and optical properties, and its industrial production may bring about a new era of fast, reliable, low-power communication and information processing. However, there are currently two major problems that hinder the widespread use of graphene products. First, there is no mature technology in industrial production that can be used to mass-produce graphene with special properties. Second, the traditional solid-state technology used for silicon-based processing is not applicable. Graphene processing of polymer materials. New techniques demonstrated by researchers at AIMEN have induced changes in the chemical lattice of graphene by short laser pulses. The duration of a single laser pulse is only a few seconds, and polar molecules in graphene will produce a continuous oscillation like a water wave. The researchers found that during the oscillation process, external molecules or desired compounds can be added to graphene by cutting the graphene lattice. The laser spot can be concentrated in a square with a side of 1 μm or a smaller area, so that the entire addition process can be controlled with high accuracy. In the process of new technology, a large amount of graphene can be cut at high speed and high precision, which opens up a new way for the wide application of graphene. Using this technique, the micron-sized graphene will be drawn at speeds of more than 1 meter per second. In addition, this technology also shows a chemical process that controls heat absorption by adjusting laser changes. At low energy output, multiphoton absorption plays a dominant role in the chemical reaction between carbon and atmospheric molecules, giving new properties to graphene, which also helps to make graphene more optical by changing its optical potential. Change. The researchers said that the performance of this technology in the industrial field has yet to be further verified. The current research is based on industrial production considerations. The purpose is to further study the feasibility of graphene in chemical and physical changes while trying to control its industrial production with electronic equipment programs. (Intern Hua Jie)
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