Effect of poly(3,4-ethylenedioxythiophene): Poly(styrene sulfonate) aggregate structure on thermoelectric performance

IF 2 4区材料科学 Q3 MATERIALS SCIENCE, COATINGS & FILMS

Thin Solid Films Pub Date : 2025-01-01 DOI:10.1016/j.tsf.2024.140583

Xiang Gao , Qinglin Jiang , Fengxing Jiang , Jiaji Yang , Jingkun Xu , Congcong Liu , Peipei Liu

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引用次数: 0

Abstract

Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) has recently demonstrated significant advancements in its thermoelectric (TE) performance. The aggregate structure of PEDOT:PSS, including molecular configuration and arrangement, plays a crucial role in carrier migration and TE performance. However, the detailed relationship between aggregate structure and TE performance remains inadequately explored. This work employs a series of solvents with different polarity to regulate PEDOT:PSS film structures, demonstrating a substantial effect on the TE properties of the post-treated thin films. As expected, changes in surface roughness, molecular chain conformation, and π-π stacking distance of the PEDOT:PSS films treated by various solvents are observed. In addition, a simple TE device is designed to validate the potential application in practice of the prepared films, showing high output voltage of 5 mV and power of 91 nW, respectively. This work contributes valuable insights for the development of advanced organic TE materials.

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来源期刊

Thin Solid Films 工程技术-材料科学：膜

CiteScore

4.00

自引率

4.80%

发文量

381

审稿时长

7.5 months

期刊介绍： Thin Solid Films is an international journal which serves scientists and engineers working in the fields of thin-film synthesis, characterization, and applications. The field of thin films, which can be defined as the confluence of materials science, surface science, and applied physics, has become an identifiable unified discipline of scientific endeavor.