New Methodology of Organic Electrochemical Synthesis - Fundamentals and Applications of Organic Electrochemistry - page 303

corresponds to the difference in energy levels
between the Fermi-level of TiO 2 and the
standard electrode potential of the I − /I 3 − redox
system.
Figure 7.4 Structure of Grätzel cell
7.1.4 Organic Transistors [7,8]
Organic transistors, in which organic material
is used for the semi-conductor layer, have been
widely explored. A model of an organic field
effect transistor (OFET) is shown in Figure 7.5 .
The mechanism of the OFET is as follows: a
gate voltage induces charge carriers at the
interface of the organic and insulating layers,
resulting in decreasing resistance between the
source electrode and the drain electrode.