fig4

Figure 4. Effect of process parameters. (A) Effects of the laser power and scanning speed. Reproduced with permission^[79]. Copyright 2018, Elsevier. (B) Morphology of LIG at different powers of 400 mW, 600 mW, and 800 mW. Reproduced with permission^[111]. Copyright 2019, The Author(s), published by Applied Physics Letters. (C) Correlation of square resistance of LIG with laser power. (D) Raman spectra at different powers. (E) Variation of the ratio of I_D/I_G at different powers. Reproduced with permission^[108]. Copyright 2017, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.