Chemistry Reference
In-Depth Information
on silicon is rather complex.
208,595
Figure 6.21
The reduction of
shows the
i-
V
curves of
p-
Si and
n
-Si under different conditions. In the absence of
the cathodic current on
n
-Si is due to hydrogen evolution and there is no cathodic
current on
p-
Si. The anodic current peak is due to passivation which is characteristic
of silicon in alkaline solutions without When is present at a concentration
higher than the critical concentration (about at which the silicon surface is
spontaneously passivated at the OCP, the anodic current peak is not measured in an
i-V
curve.
