Table 2.

The G-band parameters and photoluminescence slope.

Films	Peak Position	FWHM	Integral Intensity	m-Slope
	[cm${}^{\mathbf{-}\mathbf{1}}$]	[cm${}^{\mathbf{-}\mathbf{1}}$]	[a. u.]	$\mathsf{\mu }$m
DF40	1531	243	53,125	103,000
DF60	1534	185	45,180	64,000
DF80	1534	125	25,030	13,000