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Books > Science & Mathematics > Chemistry > Physical chemistry > Catalysis
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Redox Systems Under Nano-Space Control (Paperback, Softcover reprint of hardcover 1st ed. 2006)
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Redox Systems Under Nano-Space Control (Paperback, Softcover reprint of hardcover 1st ed. 2006)
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3.1.1 ?-Conjugated Materials ?-conjugated polymers (CPs) and
oligomers are materials with an extended ?-system along the
backbone. The materials possess many remarkable prop- ties,
including high charge carrier mobilities, electrical conductivities
(doped), electrochromism, and electroluminescence [1]. These
properties have been taken advantage of in exploration of potential
applications including in ch- ical sensors, light-emitting devices,
and ?eld-effect transistors. Many efforts have been devoted to
synthesizing new conjugated polymers and oligomers in an effort to
increase their processibility, optimize the desirable properties,
and explore new properties. In Fig. 3.1 are shown examples of some
of the CPs that have been prepared and studied. Coupling
?-conjugated materials to metal complexes gives hybrid mate- als in
which the properties of the metal complex may be coupled to those
of the conjugated backbone [2]. For example, these materials could
be used in energy-harvesting devices such as solar cells or
polymer-based light-emitting devices,wherehighchargecarrier
mobilities of theconjugatedmaterialmay be combined with either the
light-absorbing or emitting metal groups, giving improved device
performance [3, 4]. In addition to an electronic role, metal
complexes may also be used to geometrically orient ?-conjugated
materials in speci?c three-dimensional arrangments in the solid
state. Careful conside- tion of theelectronicinteractionsand
excitedstatesisnecessary for thedesign of functional materials of
this type.
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