Researchers at the AIMEN Technology Center in Spain have demonstrated a new technology for processing graphene materials using ultra-high-speed lasers, which makes it possible to produce graphene on a large scale. The research papers were published in the Applied Physics Letters.
Graphene has unique electronic and optical properties, and its industrial production may bring 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 for large-scale production of graphene with special properties; secondly, traditional solid-state technology for silicon-based processing is not applicable. Processing of polymer material graphene.
Researchers at AIMEN show a new technology that induces changes in the chemical lattice of graphene by short laser pulses. The duration of a single laser pulse is only a few seconds, and the polar molecules in graphene 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 the graphene by cutting the graphene lattice. The laser spot can be concentrated in a square with a side length of 1 micron or a smaller area, so that the entire addition process can be controlled with high precision.
In the process of new technology work, a large amount of graphene can be cut under high speed and high precision conditions, which opens up a new way for the wide application of graphene. Using this technique, drawing micron-sized graphene will exceed 1 meter per second.
In addition, the technology demonstrates a chemical process that controls heat absorption by adjusting laser changes. At low energy output, multiphoton absorption dominates the chemical reaction between carbon and atmospheric molecules, giving graphene new optical properties, which also helps to make graphene's optical potential more functional. Turn.
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, with the aim of studying the feasibility of graphene in chemical and physical changes and attempting to control its industrial production with electronic equipment programs.
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