Roll-to-roll processed PEDOT:PSS thin films: application in flexible electrochromic devices

Santos, Gustavo H.; Gavim, Anderson A. X.; Silva, Ricardo F.; Rodrigues, Paula C.; Kamikawachi, Ricardo Canute; Deus, Jeferson Ferreira de; Macedo, Andréia G.

doi:10.1007/s10854-016-5224-8

Cited by 19 publications

(12 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PEDOT:PSS films have also found use as transparent electrodes for electrochromic polymers and other applications . While electrochromic polymers on these films switch more rapidly than on doped PE 2 , the films are significantly more colored than the PE 2 ‐based films due to tailing of the PEDOT bipolaron band . This difference between the color neutrality of oxidized PE 2 and PEDOT has been previously investigated and can be quantitatively observed by comparing the colorimetry of doped PE 2 films, either with (Figure b) or without (Figure S4b, Supporting Information) an oxidized film of PProDOT, with the reported values for PEDOT:PSS .…”

Section: Resultsmentioning

confidence: 82%

“…Energy Mater. [19,23,43,46,47] This difference between the color neutrality of oxidized PE 2 and PEDOT has been previously investigated [19] and can be quantitatively observed by comparing the colorimetry of doped PE 2 films, either with ( Figure 3b) or without ( Figure S4b, Supporting Information) an oxidized film of PProDOT, with the reported values for PEDOT:PSS. This switching is reversible, albeit somewhat slower compared to using an ITO electrode due to the lower conductivity of doped PE 2 ( Figure S7, Supporting Information).…”

Section: Evaluation Of Pe 2 As a Transparent Electrode Materialsmentioning

confidence: 68%

See 1 more Smart Citation

Conductive, Solution‐Processed Dioxythiophene Copolymers for Thermoelectric and Transparent Electrode Applications

Ponder

Menon

Dasari

et al. 2019

Advanced Energy Materials

View full text Add to dashboard Cite

Conjugated polymers with high electrical conductivities are attractive for applications in capacitors, biosensors, organic thermoelectrics, and transparent electrodes. Here, a series of solution processable dioxythiophene copolymers based on 3,4‐propylenedioxythiophene (ProDOT) and 3,4‐ethylenedioxythiophene (EDOT) is investigated as thermoelectric and transparent electrode materials. Through structural manipulation of the polymer repeat unit, the conductivity of the polymers upon oxidative solution doping is tuned from 1 × 10−3 to 3 S cm−1, with a polymer consisting of a solubilizing alkylated ProDOT unit and an electron‐rich biEDOT unit (referred to as PE2) showing the highest electrical conductivity. Optimization of the film casting method and screening of dopants result in AgPF6‐doped PE2 achieving a high electrical conductivity of over 250 S cm−1 and a thermoelectric power factor of 7 μW m−1 K−2. Oxidized spray cast films of PE2 are also assessed as a transparent electrode material for use with another electrochromic polymer. This bilayer shows reversible electrochemical switching from a colored charge‐neutral state to a highly transmissive color‐neutral, oxidized state. These results demonstrate that dioxythiophene‐based copolymers are a promising class of materials, with ProDOT–biEDOT serving as a soluble analog to the well‐studied PEDOT as a p‐type thermoelectric and electrode material.

show abstract

Section: Resultsmentioning

confidence: 82%

Section: Evaluation Of Pe 2 As a Transparent Electrode Materialsmentioning

confidence: 68%

Conductive, Solution‐Processed Dioxythiophene Copolymers for Thermoelectric and Transparent Electrode Applications

Ponder

Menon

Dasari

et al. 2019

Advanced Energy Materials

View full text Add to dashboard Cite

show abstract

“…This is in good agreement with the current switching behavior of archetypical organic-based ECD devices. 34 − 36 …”

Section: Resultsmentioning

confidence: 99%

Highly Conducting Nanographite-Filled Paper Fabricated via Standard Papermaking Techniques

Isacsson

Wang²,

Fall

et al. 2020

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Eco-friendly and cost-effective materials and processes to manufacture functional substrates are crucial to further advance the area of printed electronics. One potential key component in the printed electronics platform is an electrically functionalized paper, produced by simply mixing common cellulosic pulp fibers with high-performance electroactive materials. Herein, an electronic paper including nanographite has been prepared using a standardized and scalable papermaking technique. No retention aid was needed to achieve a conducting nanographite loading as high as 50 wt %. The spontaneous retention that provides the integrity and stability of the nanographite paper, likely originates partially from an observed water-stable adhesion of nanographite flakes onto the fiber surfaces. The resulting paper exhibits excellent electrical characteristics, such as an in-plane conductivity of 107 S/cm and an areal capacitance of 9.2 mF/cm 2 , and was explored as the back-electrode in printed electrochromic displays.

show abstract

“…PEDOT:PSS-based electrochromic displays can operate through electronically-induced ion transfer from electrolytes to the PEDOT:PSS electrodes. [30][31][32] Therefore, it was suggested that the…”

Section: Electrochromic Paper Devicementioning

confidence: 99%

Ionic Liquid Mediated Dispersion and Support of Functional Molecules on Cellulose Fibers for Stimuli-Responsive Chromic Paper Devices

Koga

Nogi

Isogai

2017

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Functional molecules play a significant role in the development of high-performance composite materials. Functional molecules should be well dispersed (ideally dissolved) and supported within an easy-to-handle substrate to take full advantage of their functionality and ensure easy handling. However, simultaneously achieving the dissolution and support of functional molecules remains a challenge. Herein, we propose the combination of a nonvolatile ionic liquid and an easy-to-handle cellulose paper substrate for achieving this goal. First, the photochromic molecule, i.e., diarylethene, was dissolved in the ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([bmim]NTf). Then, diarylethene/[bmim]NTf was supported on cellulose fibers within the paper, through hydrogen bonding between [bmim] cations of the ionic liquid and the abundant hydroxyl groups of cellulose. The as-prepared paper composites exhibited reversible, rapid, uniform, and vivid coloration and bleaching upon ultraviolet and visible light irradiation. The photochromic performance was superior to that of the paper prepared in the absence of [bmim]NTf. This concept could be applied to other functional molecules. For example, lithium perchlorate/[bmim] tetrafluoroborate supported within cellulose paper acted as a flexible electrolyte to provide a paper-based electrochromic device. These findings are expected to further the development of composite materials with high functionality and practicality.

show abstract

Roll-to-roll processed PEDOT:PSS thin films: application in flexible electrochromic devices

Cited by 19 publications

References 28 publications

Conductive, Solution‐Processed Dioxythiophene Copolymers for Thermoelectric and Transparent Electrode Applications

Conductive, Solution‐Processed Dioxythiophene Copolymers for Thermoelectric and Transparent Electrode Applications

Highly Conducting Nanographite-Filled Paper Fabricated via Standard Papermaking Techniques

Ionic Liquid Mediated Dispersion and Support of Functional Molecules on Cellulose Fibers for Stimuli-Responsive Chromic Paper Devices

Contact Info

Product

Resources

About