Table 2: Information extracted from Raman spectra of DLC/a-Si films prepared from different DLC/a-Si thickness ratios.

DLC/a-Si
thickness ratio
Total
thickness (nm)

Wavenumber (cm−1)

2/2415521.528
2/6815521.507
4/4815570.744
6/2815610.568
9/61515650.453