High-Performance Conducting Polymer Materials

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

Deadline for manuscript submissions: 31 May 2024 | Viewed by 2207

Special Issue Editor


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Guest Editor
Department of Materials Science, Fudan University, Shanghai, China
Interests: conducting polymers; semiconducting polymers; n-type polymers; molecular design; C-H activation; direct arylation polymerization

Special Issue Information

Dear Colleagues,

The discovery of conducting polymers by Shirakawa, MacDiamid, and Heeger in 1977 has fundamentally changed our view of polymers from insulating “plastics” to electrically (semi)conducting materials. Since then, great efforts have been devoted to the development of high-performance conducting polymers (CPs). Herein, CPs refer to any conjugated polymers that have backbones with alternating single and double (or triple) bonds, regardless of their intrinsic conductivities (semiconductors or conductors). Modern applications of CPs are in organic electronic devices, such as organic photovoltaics (OPVs), organic thin-film transistors (OTFTs), and organic light-emitting diodes (OLEDs). We believe that research and development on CPs will be steady and continuous, and there are still possibilities for us to create new chemistry and discover new phenomena of these polymers.

This Special Issue covers the new molecular design, preparation, characterization, properties, and applications of CPs. The applications of CPs are not limited to OPVs, OTFTs, and OLEDs; they can be extended to organic thermoelectric devices and even bioelectronic applications using electrochemical transistors, which are able to stimulate the electrical activity of the nervous system. The aim of this Special Issue is to update recent knowledge, find new fundamental insights, and demonstrate applications with commercial viability for conducting polymers.

Prof. Dr. Yang Wang
Guest Editor

Manuscript Submission Information

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Keywords

  • conducting polymers
  • semiconducting polymers
  • conjugated polymers
  • molecular design
  • applications of conducting polymers
  • organic photovoltaics
  • organic thin-film transistors
  • organic light-emitting diodes
  • organic flexible electronics
  • organic bioelectronics

Published Papers (2 papers)

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Research

12 pages, 2868 KiB  
Article
Design of Novel Functional Conductive Structures and Preparation of High-Hole-Mobility Polymer Transistors by Green Synthesis Using Acceptor–Donor–Acceptor Strategies
by Shiwei Ren, Sichun Wang, Jinyang Chen and Zhengran Yi
Polymers 2024, 16(3), 396; https://doi.org/10.3390/polym16030396 - 31 Jan 2024
Viewed by 661
Abstract
The design of novel acceptor molecular structures based on classical building blocks is regarded as one of the efficient ways to explore the application of organic conjugated materials in conductivity and electronics. Here, a novel acceptor moiety, thiophene-vinyl-diketopyrrolopyrrole (TVDPP), was envisioned and prepared [...] Read more.
The design of novel acceptor molecular structures based on classical building blocks is regarded as one of the efficient ways to explore the application of organic conjugated materials in conductivity and electronics. Here, a novel acceptor moiety, thiophene-vinyl-diketopyrrolopyrrole (TVDPP), was envisioned and prepared with a longer conjugation length and a more rigid structure than thiophene-diketopyrrolopyrrole (TDPP). The brominated TVDPP can be sequentially bonded to trimethyltin-containing benzo[c][1,2,5]thiadiazole units via Suzuki polycondensation to efficiently prepare the polymer PTVDPP-BSz, which features high molecular weight and excellent thermal stability. The polymerization process takes only 24 h and eliminates the need for chlorinated organic solvents or toxic tin-based reagents. Density functional theory (DFT) simulations and film morphology analyses verify the planarity and high crystallinity of the material, respectively, which facilitates the achievement of high carrier mobility. Conductivity measurements of the polymeric material in the organic transistor device show a hole mobility of 0.34 cm2 V−1 s−1, which illustrates its potential for functionalized semiconductor applications. Full article
(This article belongs to the Special Issue High-Performance Conducting Polymer Materials)
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15 pages, 6367 KiB  
Article
PEDOT:PSS versus Polyaniline: A Comparative Study of Conducting Polymers for Organic Electrochemical Transistors
by Ryotaro Kawamura and Tsuyoshi Michinobu
Polymers 2023, 15(24), 4657; https://doi.org/10.3390/polym15244657 - 10 Dec 2023
Viewed by 1063
Abstract
Organic electrochemical transistors (OECTs) based on conducting polymers have attracted significant attention in the field of biosensors. PEDOT:PSS and polyaniline (PANI) are representative conducting polymers used for OECTs. While there are many studies on PEDOT:PSS, there are not so many reports on PANI-based [...] Read more.
Organic electrochemical transistors (OECTs) based on conducting polymers have attracted significant attention in the field of biosensors. PEDOT:PSS and polyaniline (PANI) are representative conducting polymers used for OECTs. While there are many studies on PEDOT:PSS, there are not so many reports on PANI-based OECTs, and a detailed study to compare these two polymers has been desired. In this study, we investigated the fabrication conditions to produce the best performance in the OECTs using the above-mentioned two types of conducting polymers. The two main parameters were film thickness and film surface roughness. For PEDOT:PSS, the optimal conditions for fabricating thin films were a spin-coating rate of 3000 rpm and a DI water immersion time of 18 h. For PANI, the optimal conditions were a spin-coating rate of 3000 rpm and DI water immersion time of 5 s, and adding dodecylbenzenesulfonic acid (DBSA) was found to provide better OECT performances. The OECT performances based on PEDOT:PSS were superior to those based on PANI in terms of conductivity and transconductance, but PANI showed excellence in terms of film thickness and surface smoothness, leading to the good reproducibility of OECT performances. Full article
(This article belongs to the Special Issue High-Performance Conducting Polymer Materials)
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