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Among the various transfer-printing processes, a simple and primitive techniqueinvolves retrieving ultrathin nanomaterials, such as polymers, 2D materials, and quantumdots, floating on the surface of a liquid. In particular, this method has significant limitationsas it is largely affected by the surface energy of a receiver substrate and inevitably generatesnumerous wrinkles during the printing process. In this work, we investigate a noveltransfer-printing process for metal nanopattern arrays on chemically modified graphene(CMG) films using a block copolymer (BCP) nanotemplate and polydimethylsiloxane(PDMS) stamp. A metal nanopattern array fabricated with BCP lithography on a CMG filmwas thus successfully transferred to nonplanar (i.e., rough or curved) surfaces.
