Characteristics of Raman bands of GO and rGO films at different laser fluences.
Laser fluence (mJ cm−2) | Band position (cm−1) | FWHM (cm−1) | Band intensity ratios | ||||
---|---|---|---|---|---|---|---|
D | G | 2D | 2D | I D/IG | I 2D/IG | I 2D/ID | |
GO | 1341 | 1597 | 2687 | 313.83 | 1.1 | 0.09 | 0.08 |
6 | 1345 | 1584 | 2687 | 305.79 | 0.74 | 0.1 | 0.13 |
14 | 1348 | 1584 | 2689 | 302.16 | 0.8 | 0.14 | 0.17 |
18 | 1349 | 1582 | 2686 | 239.28 | 0.75 | 0.12 | 0.16 |
25 | 1349 | 1591 | 2689 | 93.43 | 1.1 | 0.18 | 0.16 |
32 | 1347 | 1589 | 2690 | 96.93 | 1.4 | 0.28 | 0.2 |