Table A2.

Quantitative analysis of Raman spectra of the tested materials (S1–S4). Parameters of D1, G, D3, and D2 bands were obtained as a result of fitting to four components, according to the model proposed in [37]. Location—band position [cm⁻¹], FWHM—bandwidth in the middle of the height [cm⁻¹], I—intensity (area under the curve) [%]. Average values for three measurements of each sample are shown.

Fitting Results		S1	S2	S3	S4
D1	Location	1351	1350	1352	1345
	FWHM	140	120	114	56
	I	62	60	62	35
G	Location	1573	1578	1581	1569
	FWHM	68	60	54	23
	I	22	20	19	55
D3	Location	1496	1513	1524	1478
	FWHM	123	140	128	82
	I	7	9	8	2
D2	Location	1610	1610	1610	1606
	FWHM	38	35	33	31
	I	9	10	11	7