The effect of doping and thermoelectric properties of the extended planar backbone of donor-acceptor polymers
발표자
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초록
내용
Designing of the polymer backbone provides a new avenue for improving charge transport and doping efficiency; Herein, a new donor-acceptor conjugated polymer with the extended planar backbone, C6-ICPDPP, is synthesized for the investigation between the backbone construction and thermoelectric behavior. The expended planar backbone of C6-ICPDPP consists of a combination of fused heterocyclic donor compounds, exhibiting p-type characteristics. Due to the investigation of the backbone structures, two types of solvents with different boiling points are prepared to make different structural behaviors of the C6-ICPDPP, however, their thermoelectric behaviors with doping are similar. Meanwhile, the type of charge carriers of C6-ICPDPP changes from positive to negative at high doping concentrations, and both power factors are 1.32 mK2 (p-type) and 0.410 µW/mK2 (n-type), respectively. This work would provide strategies for the polymer backbone engineering and electrical behaviors with doping.