The latest issue of the *International Journal of Applied Physics Express* has featured a cover paper highlighting groundbreaking research from the Micro-Nano Research Group at the Shenyang Institute of Automation, Chinese Academy of Sciences. The study presents a novel approach to controllable graphene processing using nano-operated robots, marking another significant achievement for the group. This follows previous publications in reputable journals such as *Science Bulletin*, *Chinese Science: Physics, Mechanics & Astronomy*, and the *Journal of Physical Chemistry*, showcasing the growing recognition of their work on both domestic and international scientific stages.
Graphene, a two-dimensional material composed of a single layer of carbon atoms, exhibits exceptional physical properties that are highly dependent on its structural configuration. As a result, achieving precise and controllable cutting of graphene is essential for its practical application in advanced nanodevices. However, existing methods often operate in an open-loop system, lacking real-time feedback and precise control, which limits the reproducibility and accuracy of the cutting process.
To address this challenge, the Micro-Nano Research Group conducted studies using graphene samples provided by the Carbon Materials Research Department at the Institute of Metals, Chinese Academy of Sciences. Their research demonstrated that the asymmetry of the graphene lattice leads to variations in cutting forces when probes move along different crystallographic directions. This finding paves the way for a new graphene cutting method based on nano-scale force feedback, enabling precise, lattice-aligned processing. This breakthrough brings us closer to mass production of high-quality graphene nanodevices, significantly advancing the field of nanomanufacturing.
Since 2009, the team has made several key contributions, including advances in controllable graphene assembly, atomic-level observation of graphene under ambient conditions, rapid identification of graphene crystal orientation, and techniques for modifying graphene defects. These original discoveries continue to push the boundaries of graphene research and its potential applications in next-generation technologies.
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