Microelectronics and flexible electronics are applications that have
attracted more and more attention in the today’s world. The research of
these kinds of electronics requires the development and improvement
of existing functional materials. The viologen is one of the most
frequently utilized functional materials in many different applications.
Due to its unique redox property and variety of colors, the viologen
materials have got worldwide attention in different fields of research.



In this work, several crosslinked polyviologen and
copolyviologen film were synthesized electrochemically from
different cyanopyridine based precursors. Additionally, the
polyviologen based composite film was also synthesized with the
introduction of graphene oxide. All of these polyviologen
materials were characterized with several electrochemical,
physicochemical and imaging techniques, such as cyclic voltammetry,
electrochemical impendence spectroscopy, in-situ UV-vis spectroscopy,
FTIR and Raman spectroscopy, Atomic Force Microscopy, Scanning
Electron Microscopy and the contact angle technique, just to mention the
most used techniques. All of the synthesized polyviologen
materials showed good redox properties and unique structures,
so they possess great possibility to be applied in several
different fields of applications.



Due to their stable redox properties and unique porous
structures, the polyviologen films have shown huge potential in the
applications, both as functional materials and immobilization
material, properties advantageous in varies electronics
where minimization and flexibility are important parameters to achieve.
By introduction of graphene oxide, the electrochemical properties
of polyviologen-reduced graphene oxide based composite films could be
improved making the composite structures an interesting material
candidate when thinking about energy storage devices. All of
these results indicate that polyviologen materials can work as
multifunctional material in future applications.