Enhancing thermoelectric performance of PEDOT: PSS: A review of treatment and nanocomposite strategies

Alam, Joherul; Xu, Xiao; Adu, Philip Clinton Offei; Meng, Qingshi; Zuber, Kamil; Afshar, Shahraam; Kuan, Hsu-Chiang; Ma, Jun

doi:10.1016/j.adna.2023.08.001

Cited by 9 publications

(1 citation statement)

References 192 publications

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“…Among the intensive amount of research carried out on conducting polymers, PEDOT stands as a focal point for synthetic methodologies and the enhancement of its thermoelectric properties. To facilitate its practical utilization, it is necessary to improve its PF [ 17 ]. Hence, the crux for achieving a superior PF in a thermoelectric material lies in optimizing both σ and S [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of PEDOT/CNTs Thermoelectric Thin Films with a High Power Factor

Nasiri,

Tong,

Cho

et al. 2024

Materials

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In this study, we have improved the power factor of conductive polymer nanocomposites by combining layer-by-layer assembly with electrochemical deposition to produce flexible thermoelectric materials based on PEDOT/carbon nanotubes (CNTs)—films. To produce films based on CNTs and PEDOT, a dual approach has been employed: (i) the layer-by-layer method has been utilized for constructing the CNTs layer and (ii) electrochemical polymerization has been used in the synthesis of the conducting polymer. Moreover, the thermoelectric properties were optimized by controlling the experimental conditions including the number of deposition cycles and electropolymerizing time. The electrical characterization of the samples was carried out by measuring the Seebeck voltage produced under a small temperature difference and by measuring the electrical conductivity using the four-point probe method. The resulting values of the Seebeck coefficient S and σ were used to determine the power factor. The structural and morphological analyses of CNTs/PEDOT samples were carried out using scanning electron microscopy (SEM) and Raman spectroscopy. The best power factor achieved was 131.1 (μWm−1K−2), a competitive value comparable to some inorganic thermoelectric materials. Since the synthesis of the CNT/PEDOT layers is rather simple and the ingredients used are relatively inexpensive and environmentally friendly, the proposed nanocomposites are a very interesting approach as an application for recycling heat waste.

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Section: Introductionmentioning

confidence: 99%