Table 1 Evaluation of FWHM 2D , I (D) / I (G) , and I (G) / I (2D) for the Ni-coated PAN/SiO 2 /Si films after pyrolysis and subsequent nickel removal
From: Synthesis of flake-like graphene from nickel-coated polyacrylonitrile polymer
FWHM2D[cm-1] | I(D)/I(G) | I(G)/I(2D) | |
|---|---|---|---|
Pyrolysis conditiona | |||
1,050°C/5 min | 66 | 0.358 | 1.33 |
1,050°C/10 min | 72 | 0.357 | 1.92 |
1,050°C/15 min | 66 | 0.169 | 2.94 |
1,000°C/5 min | 66 | 0.308 | 0.97 |
1,000°C/10 min | 79 | 0.819 | 2.76 |
1,000°C/15 min | 67 | 1.000 | 2.11 |
950°C/5 min | 67 | 0.338 | 1.86 |
950°C/10 min | 73 | 0.300 | 2.62 |
950°C/15 min | 71 | 0.392 | 1.88 |
Average | 70.77 | 0.486 | 2.03 |