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Polymers
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Conductive Polymers III
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Conductive Polymers III

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

Deadline for manuscript submissions: closed (31 May 2021) | Viewed by 16425

Special Issue Editors

Prof. Dr. Hyeonseok Yoon

E-Mail Website
Guest Editor
1. School of Polymer Science and Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
2. Department of Polymer Engineering, Graduate School, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
Interests: conducting polymers; nanoparticles; composites; sensors; electrochemistry
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Hyungwoo Kim

E-Mail Website
Guest Editor
School of Polymer Science and Engineering, Chonnam National University, Gwangju 61186, Korea
Interests: organic materials synthesis; functional polymers; sustainable materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are delighted to reopen the Special Issue on “Conductive Polymers”, because we have witnessed many researchers actively working in this area to develop new theories and technologies, as well as to ameliorate existing problematic issues. We have extended the scope of the Special Issue topic from conductive polymers to conductive polymeric composites/hybrids. Additionally, we hope to continue to bring new perspectives on the structure–properties relationships of conductive polymers.

Conductive polymers have been a subject of research interest for the last few decades, since their interesting electronic properties are combined with their flexibility and light weight, and they have been utilized in sensors, actuators, and energy storage and conversion. Recent advances have been made in the control of three-dimensional structures, beyond the basic chemical structures, of conductive polymers in order to create novel functional materials. For example, hierarchically nanostructured conductive polymers have been developed and applied in sensors, supercapacitors, and battery electrodes. The control of higher level structures would also be important in developing conductive polymer-nanoparticle hybrid materials.

This Special Issue aims to report the recent progress of developing functional conductive polymers with new structure and properties, which can be applied in (but not limited to) sensors, actuators, supercapacitors, and batteries.

Prof. Dr. Hyeonseok Yoon
Prof. Dr. Hyungwoo Kim
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

  • conductive polymers
  • structure-properties relationship
  • nanostructure
  • hierarchical structure
  • polymer–nanoparticle hybrid
  • sensors
  • actuators
  • energy storage

Related Special Issues

Published Papers (3 papers)

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Research

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17 pages, 5167 KiB  
Article
Nanostructural Modification of PEDOT:PSS for High Charge Carrier Collection in Hybrid Frontal Interface of Solar Cells
by Antonio J. Olivares, Ismael Cosme, Maria Elena Sanchez-Vergara, Svetlana Mansurova, Julio C. Carrillo, Hiram E. Martinez and Adrian Itzmoyotl
Polymers 2019, 11(6), 1034; https://doi.org/10.3390/polym11061034 - 11 Jun 2019
Cited by 32 | Viewed by 4975
Abstract
In this work, we propose poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) material to form a hybrid heterojunction with amorphous silicon-based materials for high charge carrier collection at the frontal interface of solar cells. The nanostructural characteristics of PEDOT:PSS layers were modified using post-treatment techniques via isopropyl alcohol [...] Read more.
In this work, we propose poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) material to form a hybrid heterojunction with amorphous silicon-based materials for high charge carrier collection at the frontal interface of solar cells. The nanostructural characteristics of PEDOT:PSS layers were modified using post-treatment techniques via isopropyl alcohol (IPA). Atomic force microscopy (AFM), Fourier-transform infrared (FTIR), and Raman spectroscopy demonstrated conformational changes and nanostructural reorganization in the surface of the polymer in order to tailor hybrid interface to be used in the heterojunctions of inorganic solar cells. To prove this concept, hybrid polymer/amorphous silicon solar cells were fabricated. The hybrid PEDOT:PSS/buffer/a-Si:H heterojunction demonstrated high transmittance, reduction of electron diffusion, and enhancement of the internal electric field. Although the structure was a planar superstrate-type configuration and the PEDOT:PSS layer was exposed to glow discharge, the hybrid solar cell reached high efficiency compared to that in similar hybrid solar cells with substrate-type configuration and that in textured well-optimized amorphous silicon solar cells fabricated at low temperature. Thus, we demonstrate that PEDOT:PSS is fully tailored and compatible material with plasma processes and can be a substitute for inorganic p-type layers in inorganic solar cells and related devices with improvement of performance and simplification of fabrication process. Full article
(This article belongs to the Special Issue Conductive Polymers III)
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11 pages, 7414 KiB  
Article
Controlled Self-Assembly of Conjugated Polymers via a Solvent Vapor Pre-Treatment for Use in Organic Field-Effect Transistors
by Gyounglyul Jo, Jaehan Jung and Mincheol Chang
Polymers 2019, 11(2), 332; https://doi.org/10.3390/polym11020332 - 14 Feb 2019
Cited by 36 | Viewed by 5345
Abstract
A facile solution-processing strategy toward well-ordered one-dimensional nanostructures of conjugated polymers via a non-solvent vapor treatment was demonstrated, which resulted in enhancements to the charge transport characteristics of the polymers. The amount of crystalline poly(3-hexylthiophene) (P3HT) nanofibers was precisely controlled by simply varying [...] Read more.
A facile solution-processing strategy toward well-ordered one-dimensional nanostructures of conjugated polymers via a non-solvent vapor treatment was demonstrated, which resulted in enhancements to the charge transport characteristics of the polymers. The amount of crystalline poly(3-hexylthiophene) (P3HT) nanofibers was precisely controlled by simply varying the exposure time of solutions of P3HT solutions to non-solvent vapor. The effects of non-solvent vapor exposure on the molecular ordering and morphologies of the resultant P3HT films were systematically investigated using ultraviolet-visible (UV-vis) spectroscopy, polarized optical microscopy (POM), grazing incidence X-ray diffraction (GIXRD), and atomic force microscopy (AFM). The non-solvent vapor facilitates the π–π stacking in P3HT to minimize unfavorable interactions between the poor solvent molecules and P3HT chains. P3HT films deposited from the non-solvent vapor-treated P3HT solutions exhibited an approximately 5.6-fold improvement in charge carrier mobility as compared to that of pristine P3HT films (7.8 × 10−2 cm2 V−1 s−1 vs. 1.4 × 10−2 cm2 V−1 s−1). The robust and facile strategy presented herein would be applicable in various opto-electronics applications requiring precise control of the molecular assembly, such as organic photovoltaic cells, field-effect transistors, light-emitting diodes, and sensors. Full article
(This article belongs to the Special Issue Conductive Polymers III)
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Review

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26 pages, 14314 KiB  
Review
Recent Progress on Near-Infrared Photoacoustic Imaging: Imaging Modality and Organic Semiconducting Agents
by Doyoung Jung, Suhyeon Park, Changho Lee and Hyungwoo Kim
Polymers 2019, 11(10), 1693; https://doi.org/10.3390/polym11101693 - 16 Oct 2019
Cited by 26 | Viewed by 5094
Abstract
Over the past few decades, the photoacoustic (PA) effect has been widely investigated, opening up diverse applications, such as photoacoustic spectroscopy, estimation of chemical energies, or point-of-care detection. Notably, photoacoustic imaging (PAI) has also been developed and has recently received considerable attention in [...] Read more.
Over the past few decades, the photoacoustic (PA) effect has been widely investigated, opening up diverse applications, such as photoacoustic spectroscopy, estimation of chemical energies, or point-of-care detection. Notably, photoacoustic imaging (PAI) has also been developed and has recently received considerable attention in bio-related or clinical imaging fields, as it now facilitates an imaging platform in the near-infrared (NIR) region by taking advantage of the significant advancement of exogenous imaging agents. The NIR PAI platform now paves the way for high-resolution, deep-tissue imaging, which is imperative for contemporary theragnosis, a combination of precise diagnosis and well-timed therapy. This review reports the recent progress on NIR PAI modality, as well as semiconducting contrast agents, and outlines the trend in current NIR imaging and provides further direction for the prospective development of PAI systems. Full article
(This article belongs to the Special Issue Conductive Polymers III)
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