Chemistry Reference
In-Depth Information
Figure 7.5 Illustration of top-contact OFET
Polycyclic aromatic hydrocarbons and other
conjugated molecules are suitable for this
purpose. Intermolecular carrier mobility
through the organic layer is an important
factor, therefore orientation control of the
molecules and the design of the junction
between the organic layer and the electrodes
are important. A number of polymer-based
materials (conjugated polymers) for OFET have
been developed. A wet-process is available and
is useful for fabricating large area devices at low
cost, although carrier mobility is generally
lower than for highly oriented small molecules.
7.1.5 Electrochromic Devices [9]
Electrochemical reaction of organic molecules
sometimes accompanies drastic colour change.
Reversible redox behaviour with colour change
is applicable to electrochromic devices. This
colour developing and reducing property, which
is different to luminescence phenomena, is
suitable for electronic paper applications. Once
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