Structural, Nanomechanical, and Field Emission Properties of Amorphous Carbon Films Having Embedded Nanocrystallites Deposited by Filtered Anodic Jet Carbon Arc Technique

Table 1

Parameters evaluated from Raman spectra in a-C:nc films deposited at different negative substrate biases.

Substrate bias/parameters	0 V	−60 V	−150 V	−300 V
G band (cm^−1)	1570.1	1560.5	1560.0	1569.9
G-FWHM (cm^−1)	112.4	176.3	172.2	149.8
D band (cm^−1)	1405.2	1380.6	1428.3	1410.4
D-FWHM (cm^−1)	203.4	178.4	229.0	257.4
𝐼D/𝐼G	0.6	0.3	0.5	0.8