The ameliorative thermoelectric performance induced by heteroatom for dithiophene cyclopentadiene-based polymers and carbon nanotubes composite films
Source abstract
Abstract
Abstract Heteroatoms containing conjugated polymers have played a significant role in the field of organic electronic materials owing to their unique chemical and physical properties. However, the effects of heteroatoms on the performance of organic thermoelectric materials and composites have rarely been explored. In this work, three kinds of dithiophene cyclopentadiene (DTC) -based polymers, namely P (DTCBT), P (DTSiBT) and P (DTOBT), were prepared through typical Stille coupling polymerization, in which different heteroatoms were incorporated into the DTC moieties. Both the P (DTSiBT) and P (DTOBT) films exhibited superior crystallinity in relative to P (DTCBT) verified by XRD, due to the larger radius of heteroatom or heterocycle. Meanwhile, P (DTOBT) exhibited a stronger interaction with single-walled carbon nanotube (SWCNT) than two other polymers confirmed by Raman spectra. As a results, the SWCNT/P (DTOBT) displayed an optimal power factor of 85.1 ± 2.1 μW m−1 K−2 with the weight ratio of 1 : 2 (33% SWCNT) at room temperature, which is an outstanding value in consideration for the SWCNT/polymer composites at the low SWCNT content.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Thermoelectric Materials and Devices · Thermal Radiation and Cooling Technologies · Organic Electronics and Photovoltaics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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