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Schematic of two‐step all‐printable process and materials characterization. a) Printing setup schematic. b,c) Electrospinning ejection from the Taylor cone apex. d,e) Optical images of the as‐printed electrospun ZnAc/PVA nanofibers. f) SEM image of an as‐calcinated ZnO granular nanowire (GNW). Scale bar, 200 nm. g) TEM image of a GNW. Reproduced with permission.148 Copyright 2014, Macmillan Publishers Ltd.
