The development of suitable materials for organic electronics is still one of the key points to access new application
areas with this promising technology. Semiconductors based on thiophene chemistry show very high charge carrier
mobilities. The functionalization with linker groups provided materials that built monomolecular layers of the
semiconductors on the hydrolyzed oxide surface of a silicon-wafer. This approach lead to self-assembled mono-layer
field-effect transistors (SAM-FETs) with mobilities of up to 0.04 cm2/Vs, which is comparable to the values of the
respective bulk thin film. Transparent inorganic conductors like ITO are highly conductive but the costly processing and
the brittleness hamper their use in cost-sensitive and/or flexible devices. Highly conductive PEDOT-grades have been
developed with conductivities of up to 1000 S/cm which are easily applicable by printing techniques and can be used as
ITO replacement in devices such as touch panels or organic photovoltaics.
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