Surface Functionality Features of Porous Silicon Prepared and Treated in Different Conditions

Table 2

IR absorption peaks in the por-Si samples interpreted according to [29, 37–39].

Number	Band position, cm^−1	Interpretation
1	2958	Antisymmetric stretching vibrations of CH− in CH3
2	2927	Antisymmetric stretching vibrations of CH− in CH2
3	2856	Antisymmetric stretching vibrations of CH− in CH
4	2250	SiH− in O3–SiH
5	2190	SiH− in SiO2–SiH
6	2106	SiH− in Si2H–SiH
7-8	1056–1160	Antisymmetric stretching vibrations of SiO− in O–SiO and C–SiO
9	827	Symmetric stretching vibrations of SiO in O–Si–O
10	948	SiH− in Si2–H–SiH
11	760	Si–C
12	664	SiH− deformation vibrations

It corresponds to the relating numbers of absorption bands in Figures 4 and 5.