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Polymers
Special Issues
Polymers for Thermoelectric Applications
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Polymers for Thermoelectric Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (31 July 2020) | Viewed by 13183

Special Issue Editors

Dr. Bob C. Schroeder

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Guest Editor
Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, UK
Interests: polymer chemistry; organic semiconductors; plastic electronics; self-healing; thermoelectrics
Prof. Derya Baran

E-Mail Website
Guest Editor
KAUST Solar Center (KSC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
Interests: organic electronics; photo-physics; organic thermoelectrics; printed organic electronics

Special Issue Information

Dear Colleagues,

The aim of this Special Issue is to highlight the most recent progress in the field of organic thermoelectric material development. The use of organic conductors as functional or inorganic hybrid materials in thermoelectric generators has gained traction due to their inherently low thermal conductivities and good electrical transport properties. Despite these advantages, the widespread application of polymer-based thermoelectric materials remains challenging, due to the high doping levels required, leading to significant morphological instabilities and poor oxidative stability, especially for n-type materials.

Papers in this Issue will discuss current material developments for organic thermoelectric applications and encompasses both functional material developments and innovative approaches towards organic semiconductor doping and processing to yield more stable material blends. Of particular interest are new n-type dopants and polymer structures leading to higher doping efficiency and significantly improved morphological stability at elevated doping concentrations, as well as novel materials for printed TEG modules and innovative solutions for new TEG module designs.

Dr. Bob C. Schroeder
Prof. Derya Baran
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Conjugated polymers
  • Organic dopants
  • Organic semiconductors
  • Organic thermoelectrics
  • Hybrid thermoelectrics
  • N-type organic semiconductors
  • Doping
  • Charge transport in doped semiconductors
  • Organic thermoelectric generators
  • Printed thermoelectric modules.

Published Papers (3 papers)

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Research

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14 pages, 3038 KiB  
Article
Enhanced Thermoelectric Performance of Indacenodithiophene-Benzothiadiazole Copolymer Containing Polar Side Chains and Single Wall Carbon Nanotubes Composites
by Zhongming Chen, Tongchao Liu, Chengjun Pan and Guiping Tan
Polymers 2020, 12(4), 848; https://doi.org/10.3390/polym12040848 - 7 Apr 2020
Cited by 8 | Viewed by 2627
Abstract
Composite films of indacenodithiophene-bezothiadazole copolymers bearing polar side chains (P1) and single wall carbon nanotubes (SWCNTs) are found to show a competitive thermoelectric performance compared to their analogous polymers with aliphatic side chains (P2). The enhanced power factors could [...] Read more.
Composite films of indacenodithiophene-bezothiadazole copolymers bearing polar side chains (P1) and single wall carbon nanotubes (SWCNTs) are found to show a competitive thermoelectric performance compared to their analogous polymers with aliphatic side chains (P2). The enhanced power factors could be attributed to the stronger interfacial interactions between the P1/SWCNTs compared to that of P2/SWCNTs containing the same ratio of SWCNTs. A maximum power factor of 161.34 μW m−1 K−2 was obtained for the composite films of P1/SWCNTs for a filler content of 50 wt%, which is higher than that of P2/SWCNTs (139.06 μW m−1 K−2, 50 wt%). Our work sheds light on the design of side-chains in efficient conjugated polymers/SWCNTs thermoelectric materials and contributes to the understanding of their thermoelectric properties. Full article
(This article belongs to the Special Issue Polymers for Thermoelectric Applications)
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8 pages, 1893 KiB  
Article
Effect of SrTiO3 Nanoparticles in Conductive Polymer on the Thermoelectric Performance for Efficient Thermoelectrics
by Dabin Park, Hyun Ju and Jooheon Kim
Polymers 2020, 12(4), 777; https://doi.org/10.3390/polym12040777 - 1 Apr 2020
Cited by 13 | Viewed by 3005
Abstract
We present hybrid organic inorganic materials, namely, SrTiO3/polyaniline (PANI) composites, with high thermoelectric performance; samples with various SrTiO3 contents (10, 20, 30, and 50 wt.%) were prepared. The PANI component was obtained through the polymerization of aniline monomers, followed by [...] Read more.
We present hybrid organic inorganic materials, namely, SrTiO3/polyaniline (PANI) composites, with high thermoelectric performance; samples with various SrTiO3 contents (10, 20, 30, and 50 wt.%) were prepared. The PANI component was obtained through the polymerization of aniline monomers, followed by camphosulfonic acid-doping to enhance its electrical conductivity. SrTiO3, with a high Seebeck coefficient, was used as the N-type inorganic componenet; it was synthesized via a one-pot solvothermal methods and, then, dispersed into the conductive PANI matrix. The SrTiO3 content influenced the Seebeck coefficient and electrical conductivity of the resulting composites. The variations in the thermoelectric properties of the SrTiO3/PANI composites consequently changed their power factor; at room temperature, the highest value was ~49.6 μW·m/K2, which is 17 times larger than that of pure PANI. Full article
(This article belongs to the Special Issue Polymers for Thermoelectric Applications)
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Review

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18 pages, 4304 KiB  
Review
Flexible Organic Thermoelectric Materials and Devices for Wearable Green Energy Harvesting
by Yinhang Zhang and Soo-Jin Park
Polymers 2019, 11(5), 909; https://doi.org/10.3390/polym11050909 - 20 May 2019
Cited by 66 | Viewed by 7174
Abstract
In the past few decades, organic thermoelectric materials/devices, which can exhibit remarkable potential in green energy conversion, have drawn great attention and interest due to their easy processing, light weight, intrinsically low thermal conductivity, and mechanical flexibility. Compared to traditional batteries, thermoelectric materials [...] Read more.
In the past few decades, organic thermoelectric materials/devices, which can exhibit remarkable potential in green energy conversion, have drawn great attention and interest due to their easy processing, light weight, intrinsically low thermal conductivity, and mechanical flexibility. Compared to traditional batteries, thermoelectric materials have high prospects as alternative power generators for harvesting green energy. Although crystalline inorganic semiconductors have dominated the fields of thermoelectric materials up to now, their practical applications are limited by their intrinsic fragility and high toxicity. The integration of organic polymers with inorganic nanoparticles has been widely employed to tailor the thermoelectric performance of polymers, which not only can combine the advantages of both components but also display interesting transport phenomena between organic polymers and inorganic nanoparticles. In this review, parameters affecting the thermoelectric properties of materials were briefly introduced. Some recently developed n-type and p-type thermoelectric films and related devices were illustrated along with their thermoelectric performance, methods of preparation, and future applications. This review will help beginners to quickly understand and master basic knowledge of thermoelectric materials, thus inspiring them to design and develop more efficient thermoelectric devices. Full article
(This article belongs to the Special Issue Polymers for Thermoelectric Applications)
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