Mechanistic study of the redox process of an in situ oxidatively polymerised poly(3,4-ethylene-dioxythiophene) film

Ruffο, Riccardo; Celik-Cochet, Ayse; Posset, Uwe; Mari, C.M.; Schottner, G.

doi:10.1016/j.solmat.2007.03.032

Cited by 27 publications

(20 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Residual spent oxidant can be easily removed washing the insoluble polymeric films with lower alcohols according to an established protocol. Complete Fe removal is confirmed by the absence of Fe 2+ /Fe 3+ redox peak on the CV traces and further supported by previous SEM/EDX analysis demonstrating the complete removal of such impurities from PEDOT films prepared under analogous conditions . Further addition of additives and/or adhesion promoters can be applied to fine tune the final properties.…”

Section: Resultssupporting

confidence: 75%

State‐of‐the‐Art Neutral Tint Multichromophoric Polymers for High‐Contrast See‐Through Electrochromic Devices

Sassi¹,

Salamone²,

Ruffο³

et al. 2016

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

Two new multichromophoric electrochromic polymers featuring a conjugated EDOT/ProDOT copolymer backbone (PXDOT) and a reversible Weitz-type redox active small molecule electrochrome (WTE) tethered to the conjugated chain are reported here. The careful design of the WTEs provides a highly reversible redox behavior with a colorless red switching that complements the colorless blue switching of the conjugated backbone. Subtractive color mixing successfully provides high performing solution processable polymeric layers with colorless neutral tint switchable limiting states for application in see-through electrochromic devices. Design, synthesis, comprehensive chemical and spectroelectrochemical characterization as well as the preparation of a proof-of-concept device are discussed.

show abstract

Section: Resultssupporting

confidence: 75%

State‐of‐the‐Art Neutral Tint Multichromophoric Polymers for High‐Contrast See‐Through Electrochromic Devices

Sassi¹,

Salamone²,

Ruffο³

et al. 2016

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

show abstract

“…[41] Only the EDOT-EthC6 derivative gave results comparable with those obtained by electrochemical polymerization. Therefore, all monomers were also chemically polymerized according to literature protocols.…”

Section: Resultsmentioning

confidence: 62%

New Roll‐to‐Roll Processable PEDOT‐Based Polymer with Colorless Bleached State for Flexible Electrochromic Devices

Macher

Schott

Sassi

et al. 2019

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

Conjugated electrochromic (EC) polymers for flexible EC devices (ECDs) generally lack a fully colorless bleached state. A strategy to overcome this drawback is the implementation of a new sidechain-modified poly(3,4-ethylene dioxythiophene) derivative that can be deposited in thin-film form in a customized high-throughput and large-area roll-to-roll polymerization process. The sidechain modification provides enhanced EC properties interms of visible light transmittance change, Δτ v = 59% (ΔL* = 54.1), contrast ratio (CR = 15.8), coloration efficiency (η = 530 cm² C −1 ), and color neutrality (L* = 83.8, a* = −4.3, b* = −4.1) in the bleached state. The intense bluecolored polymer thin films exhibit high cycle stability (10 000 cycles) and fast response times. The design, synthesis, and polymerization of the modified 3,4-ethylene dioxythiophene derivative are discussed along with a detailed optical, electrochemical, and spectroelectrochemical characterization of the resulting EC thin films. Finally, a flexible see-through ECD with a visible light transmittance change of Δτ v = 47% (ΔL* = 51.9) and a neutral-colored bleached state is developed.

show abstract

“…PEDOT is dark blue in its reduced state and is light blue in its oxidized state [8][9][10] . PEDOT, as a cathodically colored electrochromic material is suitable for use alongside anodically coloring conducting polymers in dual polymer electrochromic devices (ECDs) [6] .…”

Section: Introductionmentioning

confidence: 99%

Characterization of PEDOT Films for Electrochromic Applications

Zainal

Mohd

2015

Polymer-Plastics Technology and Engineering

View full text Add to dashboard Cite

Poly 3,4-ethylenedioxythiophene (PEDOT) films were formed on Indium Tin Oxide (ITO)-coated glass by electrodeposition. Cyclic voltammetry, AFM and UV-Vis spectroscopy were employed to investigate the properties of the PEDOT films. Two different types of PEDOT films, i.e., (i) smooth and homogenous surface with pinnacle-like structure and (ii) rough and nonhomogenous with grain-like structure) were produced in two ways. These included varying deposition times and by applying different deposition potentials. The surface roughness of the PEDOT films increased with increasing deposition time and applied potential used. The smooth film prepared at þ1.1 V for 15 s has good electrochromicc and optical properties. However, its stability over repetitive usage is inadequate and needs further improvement.

show abstract

Mechanistic study of the redox process of an in situ oxidatively polymerised poly(3,4-ethylene-dioxythiophene) film

Cited by 27 publications

References 17 publications

State‐of‐the‐Art Neutral Tint Multichromophoric Polymers for High‐Contrast See‐Through Electrochromic Devices

State‐of‐the‐Art Neutral Tint Multichromophoric Polymers for High‐Contrast See‐Through Electrochromic Devices

New Roll‐to‐Roll Processable PEDOT‐Based Polymer with Colorless Bleached State for Flexible Electrochromic Devices

Characterization of PEDOT Films for Electrochromic Applications

Contact Info

Product

Resources

About