948390.fig.003a
(a)
948390.fig.003b
(b)
948390.fig.003c
(c)
948390.fig.003d
(d)
948390.fig.003e
(e)
948390.fig.003f
(f)
Figure 3: FT-IR spectra of the crystalline silicon (cSi) wafers after the functionalization steps. (a) cSi. (b) cSi after thermal oxidation. (c) cSi after APTES. (d) cSi after GA. (e) cSi after PA. (f) cSi after IgG.