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Table 2 FTIR spectra of C-Si-nc suspensions

From: Synthesis of colloidal solutions with silicon nanocrystals from porous silicon

Peak number Wavenumber (cm-1) Group Vibrational modes Reference
1 900 SiH3 Degenerate deformation [46, 47, 49]
2 1,113, 1,080, 1,092 Si-O-Si in SiO2 Stretching [4649]
3 880 O3SiH in SiO2 Bending [47, 49]
4 1,200 to 1,236 Si-CH3 or Si-CH2 Symmetric bending [50]
5 1,360 C-H Bending [50]
6 1,390 to 1,460 C-CH3 or SiCH3 or 2 Deformation or scissoring [50]
7 1,710 Carboxyl   [48]
8 2,350 CO2 Room ambience [47]
9 1,020 Si-OR Stretching [50]
10 2,880 C-CH2 or 3 Stretching [50, 51]
11 2,974 C-CH3 or Si-CH3 Asymmetric stretching [50]
12 2,820 C-CH2 Symmetric stretching [50]
13 1,740 Ambient water vapor   [47]
  1. Peak positions of FTIR vibrational modes and their assignment.