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A novel n-type poly(sulfonic acid diphenyl aniline) and its nanocomposites with large Seebeck coefficient enhanced with external magnetic fields
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2022-07-26 , DOI: 10.1002/app.52843 Keziban Huner 1 , Ferdane Karaman 1
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2022-07-26 , DOI: 10.1002/app.52843 Keziban Huner 1 , Ferdane Karaman 1
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Most of the polymeric thermoelectric materials represent p-type conductivity; however, those of n-type are very few. We report some novel n-type polymeric materials, which are poly(sulphonic acid diphenyl aniline) (PSDA) and its nanocomposites with polythiophene (PTh). They were synthesized in aqueous media using chemical oxidation polymerization process under the external magnetic field where the flux intensities are 0, 1.5, 2.5, and 4.6 kGauss. As the magnetic flux density increases, absolute values of Seebeck coefficient of PSDA and PSDA/PTh nanocomposite films increased however their conductivity did not changed. The negative sign of Seebeck coefficients indicated that PSDA and PSDA/PTh nanocomposites have n-type conductivity. The highest Seebeck coefficient and power factor were obtained as −2535 μV/K and 0.031 μW/mK2, respectively, for PSDA synthesized under 4.6 kGauss magnetic flux. Changes of the Seebeck coefficient were examined in detail with XPS analysis. FTIR, UV–vis spectroscopy, DLS, and XRD analyzes were also performed for the characterization of the polymers. Their surface morphologies were examined by STEM.
中文翻译：
一种新型n型聚（磺酸二苯胺）及其纳米复合材料，具有外磁场增强的大塞贝克系数
大多数聚合物热电材料代表p型导电性；但是，n型的很少。我们报告了一些新型的n型聚合物材料，它们是聚（磺酸二苯胺）（PSDA）及其与聚噻吩（PTh）的纳米复合材料。它们是在外磁场下使用化学氧化聚合工艺在水介质中合成的，其中通量强度为 0、1.5、2.5 和 4.6 kGauss。随着磁通密度的增加，PSDA和PSDA/PTh纳米复合薄膜的塞贝克系数的绝对值增加，但它们的电导率没有改变。塞贝克系数的负号表明PSDA和PSDA/PTh纳米复合材料具有n型导电性。最高塞贝克系数和功率因数分别为 -2535 μV/K 和 0.031 μW/mK 2，分别用于在 4.6 kGauss 磁通量下合成的 PSDA。使用 XPS 分析详细检查了塞贝克系数的变化。还进行了 FTIR、UV-vis 光谱、DLS 和 XRD 分析以表征聚合物。通过 STEM 检查它们的表面形态。
更新日期：2022-07-26
中文翻译：
一种新型n型聚（磺酸二苯胺）及其纳米复合材料，具有外磁场增强的大塞贝克系数
大多数聚合物热电材料代表p型导电性；但是，n型的很少。我们报告了一些新型的n型聚合物材料，它们是聚（磺酸二苯胺）（PSDA）及其与聚噻吩（PTh）的纳米复合材料。它们是在外磁场下使用化学氧化聚合工艺在水介质中合成的，其中通量强度为 0、1.5、2.5 和 4.6 kGauss。随着磁通密度的增加，PSDA和PSDA/PTh纳米复合薄膜的塞贝克系数的绝对值增加，但它们的电导率没有改变。塞贝克系数的负号表明PSDA和PSDA/PTh纳米复合材料具有n型导电性。最高塞贝克系数和功率因数分别为 -2535 μV/K 和 0.031 μW/mK 2，分别用于在 4.6 kGauss 磁通量下合成的 PSDA。使用 XPS 分析详细检查了塞贝克系数的变化。还进行了 FTIR、UV-vis 光谱、DLS 和 XRD 分析以表征聚合物。通过 STEM 检查它们的表面形态。
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