Figure 5.

(A) A SEM image of the graphene structure produced with 0.8 W laser power [88]. (B) The stepped structure produced by adjusting the laser etching times [92]. (C) A schematic illustration of a jigsaw-like laser-induced graphene (LIG) fabricated by laser patterning on a pure PI film and then by laser scribing on a three-dimensional (3D) bionic PI film [93]. (D) Illustrations of a hybrid patterning process assisted by a metal mesh overhang showing two characteristic etching masks [96]. Reprinted with permission from [88,92,93,96], Copyright 2019 SciEngine, Copyright 2018 John Wiley and Sons, Copyright 2022 Springer Nature, Copyright 2020 Springer Nature, respectively.