1 research outputs found
Low-Cost Black Phosphorus Nanofillers for Improved Thermoelectric Performance in PEDOT:PSS Composite Films
In
recent years, two-dimensional black phosphorus (BP) has seen a surge
of research because of its unique optical, electronic, and chemical
properties. BP has also received interest as a potential thermoelectric
material because of its high Seebeck coefficient and excellent charge
mobility, but further development is limited by the high cost and
poor scalability of traditional BP synthesis techniques. In this work,
high-quality BP is synthesized using a low-cost method and utilized
in a PEDOT:PSS film to create the first ever BP composite thermoelectric
material. The thermoelectric properties are found to be greatly enhanced
after the BP addition, with the power factor of the film, with 2 wt
% BP (36.2 μW m<sup>–1</sup> K<sup>–2</sup>) representing
a 109% improvement over the pure PEDOT:PSS film (17.3 μW m<sup>–1</sup> K<sup>–2</sup>). A simultaneous increase of
mobility and decrease of the carrier concentration is found to occur
with the increasing BP wt %, which allows for both Seebeck coefficient
and electrical conductivity to be increased. These results show the
potential of this low-cost BP for use in energy devices