Chemistry Reference
In-Depth Information
oxide-free surfaces. (2) The value of the redox potential relative to the band edge deter-
mines the extent of conduction band process versus valence band process. (3) For the
redox species with more than one oxidation step per molecule, the reaction intermedi-
ates may have very different behavior from that indicated by the value of the redox
potential. (4) The interaction between the redox species and its intermediates with
silicon atoms on the electrode strongly affects the contribution from the valence band
relative to the conduction band and the ratio of electrochemical reaction to chemical
reaction. (5) The interaction between two or more redox couples may also occur, which
further complicates the reaction mechanism of each individual redox couple.
6.5.2. Electroluminescence Associated with Redox Reactions
Electroluminescence is a process in which light of a certain wavelength is emitted
from a semiconductor electrode as a result of electrochemical reactions. The results
