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Spatially ordered arrays of single crystal graphene grains are synthesized by locally controlling nucleation on polycrystalline Cu using chemical vapor deposition. The grains can be transferred on an arbitrary substrate for further characterization and device fabrication. This offers a way to potentially fabricate graphene‐based devices by regular microelectronic processes free of graphene grain boundaries...
Control of chemical vapor deposition (CVD) graphene nucleation on polycrystalline Cu by locally providing a high concentration of carbon is demonstrated. As reported by Qingkai Yu and coworkers, solid carbon source poly(methyl methacrylate (PMMA) is used to enhance local nucleation and spatially ordered arrays of single crystal graphene grains can be synthesized at predetermined sites on the Cu surface...
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