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. 2016 Jul 8;6:29464. doi: 10.1038/srep29464

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SEM images of early nucleation stage of (a) one-step and (b) two-step graphene films after a growth time of 60 sec. (c) Raman spectra of fully-covered one-step and two-step grown graphene. AFM images of (d) one-step and (e) two-step graphene on Cu foil subjected to FIFE test. (f ) OTR of PET, 1-G/PET, and 2-G/PET, respectively.