An organometallic nickel complex containing thieno[3,2-b]thiophene units was designed and synthesized. Composite
films of the resulting nickel complex and polyvinylidene difluoride,
which can be fabricated via a simple solution process under atmospheric
conditions, exhibit remarkably high n-type conductivity (>200 S
cm–1). Moreover, the thermoelectric power factor
of the
n-type composite film was proven to be air stable. A grazing-incidence
wide-angle X-ray diffraction analysis indicated a significant impact
of introducing the thieno[3,2-b]thiophene core into
the backbone of the nickel complex on the orientation within the composite
films.
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