The
fabrication of flexible high-performance organic/inorganic
thermoelectric (TE) composite films has been a hot spot for researchers
in recent years. In this work, dynamic 3-phase interfacial electropolymerization
of aniline, together with physical mixing with single-walled carbon
nanotubes (SWCNTs), was adopted to prepare polyaniline/SWCNT (PANI/SWCNT)
TE composites. The dimethyl sulfoxide (DMSO) added into the electrochemical
polymerization system affords strong capability in improving the TE
performance of composite films. Moreover, varying loadings of SWCNTs
can also conveniently tune the TE performance of composites. Hence,
the resultant composites afford the highest power factor (PF) of 236.4
± 5.9 μW m–1 K–2 at
room temperature. This work demonstrates that the introduction of
DMSO into the electrolyte and the electrochemical polymerization are
highly effective in fabricating high-performance PANI/SWCNT TE composites.
Poly(aniline-co-pyrrole) formed on SWCNTs via electropolymerization affords a greatly enhanced power factor of 111.4 ± 3.2 μW m−1 K−2 at room temperature.
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