Journal ArticleDOI
PEDOT Nanocrystal in Highly Conductive PEDOT:PSS Polymer Films
TLDR
The nanometer-size crystallization of poly(3,4-ethylenedioxythiophene) (PEDOT) inside the hydrophobic core region of PEDOT:PSS (PSS: poly(4-styrenesulfonate)) in a solid film is found by small and wide-angle X-ray scatterings using a synchrotron radiation source as mentioned in this paper.Abstract:
The nanometer-size crystallization of poly(3,4-ethylenedioxythiophene) (PEDOT) inside the hydrophobic core region of PEDOT:PSS (PSS: poly(4-styrenesulfonate)) in a solid film is found by small and wide-angle X-ray scatterings using a synchrotron radiation source. The clarified PEDOT:PSS structure indicates that a nanocrystal of PEDOT surrounded by PSS is grown in the solid film from randomly oriented PEDOT in a micelle dispersed in water during the course of film fabrication. The addition of ethylene glycol (EG) to the PEDOT:PSS water dispersion and post-treatment of the pristine film with EG both provide similar improvements in PEDOT crystallinity. The crystallite size of PEDOT increases up to a comparable size (∼4.8 nm) to the hydrophobic PEDOT core region of the micelle. The electrical conductivity of the solid film is concurrently enhanced by 2 orders of magnitude with the growing nanocrystal of PEDOT. These findings clearly demonstrate the importance of the single crystalline PEDOT assisted by EG to ...read more
Citations
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Journal ArticleDOI
Structural control of mixed ionic and electronic transport in conducting polymers.
Jonathan Rivnay,Sahika Inal,Brian Collins,Michele Sessolo,Eleni Stavrinidou,Xenofon Strakosas,Christopher J. Tassone,Dean M. DeLongchamp,George G. Malliaras +8 more
TL;DR: It is shown that bulk ionic and electronic mobilities are simultaneously affected by processing-induced changes in nano- and meso-scale structure in PEDOT:PSS films, and that domain purification on addition of dispersion co-solvents limits ion mobility, even while electronic conductivity improves.
Journal ArticleDOI
Pure PEDOT:PSS hydrogels
TL;DR: It is shown that designing interconnected networks of PEDOT:PSS nanofibrils via a simple method can yield high-performance pure PEDots that exhibit superior mechanical and electrical properties, stability, and tunable swelling.
Journal ArticleDOI
Morphological change and mobility enhancement in PEDOT:PSS by adding co-solvents.
TL;DR: Adding ethylene glycol to a poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) solution improves the crystallinity of the PEDOT and the ordering of the H2O nanocrystals in solid films.
Journal ArticleDOI
“Secondary doping” methods to significantly enhance the conductivity of PEDOT:PSS for its application as transparent electrode of optoelectronic devices
TL;DR: It has been discovered that the conductivity of as-prepared PEDot:PSS from its aqueous solution can be significantly enhanced by adding organic compounds like high-boiling point polar organic solvents, ionic liquids and surfactants or through a post-treatment of PEDOT: PSS films with organic compounds.
Journal ArticleDOI
Progress in understanding structure and transport properties of PEDOT-based materials: A critical review
Magatte N. Gueye,Magatte N. Gueye,Alexandre Carella,Jérôme Faure-Vincent,Renaud Demadrille,Jean-Pierre Simonato +5 more
TL;DR: In this article, the authors reviewed and discussed recent progresses dealing with the electrical conductivity and transport properties in poly(3,4-ethylene dioxythiophene), with special attention on morphological and structural features.
References
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Journal ArticleDOI
Scientific importance, properties and growing applications of poly(3,4-ethylenedioxythiophene)
Stephan Kirchmeyer,Knud Reuter +1 more
TL;DR: In this article, the industrial applications of poly(3,4-ethylenedioxythiophene) and poly(styrene sulfonic acid) poly(poly(3.4)-ethylenedioitriou glycol (PEDT) are summarized.
Journal ArticleDOI
Highly Conductive PEDOT:PSS Electrode with Optimized Solvent and Thermal Post-Treatment for ITO-Free Organic Solar Cells
Yong Hyun Kim,Christoph Sachse,Michael L. Machala,Christian Albrecht May,Lars Müller-Meskamp,Karl Leo +5 more
TL;DR: In this article, a solvent post-treatment method was used to optimize poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) films as stand-alone electrodes for organic solar cells.
Journal ArticleDOI
On the mechanism of conductivity enhancement in poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) film through solvent treatment
TL;DR: In this article, a poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) film is enhanced by more than 100 fold on adding some organic compounds into aqueous solutions or by treating it with organic solvents, such as ethylene glycol, 2-nitroethanol, methyl sulfoxide or 1-methyl-2-pyrrolidinone.
Journal ArticleDOI
Enhancement of electrical conductivity of poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate) by a change of solvents
TL;DR: In this paper, the authors measured the DC conductivity of poly(3,4-ethylenedioxythiophene) (PEDOT) doped with poly(4-styrenesulfonate) (PSS) with various organic solvents.
Journal ArticleDOI
The Origin of the High Conductivity of Poly(3,4-ethylenedioxythiophene)−Poly(styrenesulfonate) (PEDOT−PSS) Plastic Electrodes
Xavier Crispin,Fredrik L. E. Jakobsson,Annica Crispin,P. C. M. Grim,Peter Andersson,Alexander Volodin,C. van Haesendonck,M. Van der Auweraer,and W. R. Salaneck,Magnus Berggren +9 more
TL;DR: In this article, the secondary dopant diethylene glycol (DEG) was added to the conducting polymer poly(3,4-ethylenedioxythiophene)− poly(styrenesulfonate) (PEDOT−PSS) to improve its electrical properties.