Fabrication of Laser-Induced Graphene on Carbon Electrodes for Efficient Hydrogen Evolution Reaction

Figure 2

Laser-induced graphene (LIG) on (a) polyimide (PI) film and (g) carbon film fabricated without a chopper operation for a laser power of 5.4 W and (b–f) on a PI film and (h–l) carbon film (after pyrolysis) at laser powers of 5.4, 6.8, 8.2, 9.4, and 11.4 W fabricated with a chopper. Laser power was attenuated to 50 percent while patterning with chopper. Scale bar indicates the width of samples for LIG-CFs. Laser patterning areas on the PI film were identical ( mm²).

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