Effect of layer thickness on the thermoelectric properties of fully sprayed poly(3-hexylthiophene-2,5-diyl) thin films doped with chloroauric acid

IF 2.3 4区材料科学 Q2 CHEMISTRY, APPLIED

Journal of Coatings Technology and Research Pub Date : 2024-10-14 DOI:10.1007/s11998-024-01008-0

Benedikt Sochor, Simon Schraad, Linus F. Huber, Alexander Hexemer, Tim Laarmann, Sarathlal Koyiloth Vayalil, Peter Müller-Buschbaum, Stephan V. Roth

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Abstract

The thermoelectric properties of fully sprayed thin films of poly(3-hexylthiophen-2,5-diyl) (P3HT) doped with chloroauric acid are investigated for different film thicknesses. The film thickness increases logarithmically with increasing amount of deposited material on the surfaces. Both the electrical conductivity and measured Seebeck coefficients of the doped thin films show an optimal polymer layer thickness between 275 and 310 nm and yield a maximum power factor of \((1.77\,\pm \,0.22) \frac{\mu \text {W}}{\text {m}\cdot \text {K}^2}\). The optimum layer thickness results from the optimal amount of dopant molecules per monomer between 1.1 and 1.3 at these ratios of P3HT and HAuCl\(_4\) for the thin film fabrication.

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层厚度对掺杂氯金酸的全喷涂聚（3-己基噻吩-2,5-二基）薄膜热电性能的影响

研究了掺杂了氯金酸的聚(3-己基噻吩-2,5-二基)（P3HT）全喷涂薄膜在不同薄膜厚度下的热电特性。薄膜厚度随表面沉积材料量的增加而呈对数增加。掺杂薄膜的电导率和测得的塞贝克系数都显示出聚合物层的最佳厚度在 275 到 310 nm 之间，并且产生的最大功率因数为（（1.77\\pm \,0.22）\frac\{mu \text {W}}{text {m}\cdot \text {K}^2}}）。在 P3HT 和 HAuCl\(_4\) 的这些比率下，每个单体的掺杂剂分子的最佳数量在 1.1 和 1.3 之间，这就是薄膜制造的最佳层厚度。

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来源期刊

Journal of Coatings Technology and Research 工程技术-材料科学：膜

CiteScore

4.30

自引率

8.70%

发文量

130

审稿时长

2.5 months

期刊介绍： Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.