PEDOT:PSS-V2O5 Hybrid for Color Adjustement in Electrochromic Systems

Electrochromism is known as a modulation of the optical properties under an applied voltage. Used in various applications, aside to the commercialized smart windows based on transmissive electrochromic devices (ECDs), the opaque systems have received significant interest for displays purposes. Herei...

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Main Authors: Romain Futsch, Issam Mjejri, Harena Rakotozafy, Aline Rougier
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-04-01
Series:Frontiers in Materials
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fmats.2020.00078/full
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author Romain Futsch
Issam Mjejri
Harena Rakotozafy
Aline Rougier
author_facet Romain Futsch
Issam Mjejri
Harena Rakotozafy
Aline Rougier
author_sort Romain Futsch
collection DOAJ
description Electrochromism is known as a modulation of the optical properties under an applied voltage. Used in various applications, aside to the commercialized smart windows based on transmissive electrochromic devices (ECDs), the opaque systems have received significant interest for displays purposes. Herein, in a novel approach to adjust color, electrochromic oxides with high EC performance were chosen as additives to commercialized conductive and electrochromic polymer ink. More precisely opaque films were deposited (using Bar Coater) from mixtures of V2O5, synthesized by polyol process, with poly(3,4-ethylenedioxythiophene, polystyrene sulfonate) PEDOT:PSS commercial ink in different weight percentages (wt%) ranging from 0 to 100 (V2O5 wt%). Films thicknesses varied from hundred of nms to few μms. As-deposited films colors range from blue for PEDOT:PSS to orange for V2O5. PEDOT:PSS-V2O5 films exhibit significant electrochromic properties associated with a good electrochemical stability. In the series, the hybrid film with 90 wt%–10 wt% PEDOT:PSS-V2O5 shows a reversible behavior with significant reflectance modulation (ΔR≈20.5% at 550 nm) in lithium based electrolyte and a good contrast (ΔE∗ > 30). The maximum contrast was reached for 3.7 μm thick layer. Our results indicate that the hybrid film, combining the benefit of mixing inorganic and organic materials, are promising materials for enhancing electrochromic devices color and hybrid electrochromic materials processability on large scale.
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spelling doaj.art-89127a9672e049d585924e5f15111dba2022-12-22T03:15:33ZengFrontiers Media S.A.Frontiers in Materials2296-80162020-04-01710.3389/fmats.2020.00078522403PEDOT:PSS-V2O5 Hybrid for Color Adjustement in Electrochromic SystemsRomain FutschIssam MjejriHarena RakotozafyAline RougierElectrochromism is known as a modulation of the optical properties under an applied voltage. Used in various applications, aside to the commercialized smart windows based on transmissive electrochromic devices (ECDs), the opaque systems have received significant interest for displays purposes. Herein, in a novel approach to adjust color, electrochromic oxides with high EC performance were chosen as additives to commercialized conductive and electrochromic polymer ink. More precisely opaque films were deposited (using Bar Coater) from mixtures of V2O5, synthesized by polyol process, with poly(3,4-ethylenedioxythiophene, polystyrene sulfonate) PEDOT:PSS commercial ink in different weight percentages (wt%) ranging from 0 to 100 (V2O5 wt%). Films thicknesses varied from hundred of nms to few μms. As-deposited films colors range from blue for PEDOT:PSS to orange for V2O5. PEDOT:PSS-V2O5 films exhibit significant electrochromic properties associated with a good electrochemical stability. In the series, the hybrid film with 90 wt%–10 wt% PEDOT:PSS-V2O5 shows a reversible behavior with significant reflectance modulation (ΔR≈20.5% at 550 nm) in lithium based electrolyte and a good contrast (ΔE∗ > 30). The maximum contrast was reached for 3.7 μm thick layer. Our results indicate that the hybrid film, combining the benefit of mixing inorganic and organic materials, are promising materials for enhancing electrochromic devices color and hybrid electrochromic materials processability on large scale.https://www.frontiersin.org/article/10.3389/fmats.2020.00078/fullelectrochromismPEDOT:PSSV2O5color tuningbar coatinghybrid materials
spellingShingle Romain Futsch
Issam Mjejri
Harena Rakotozafy
Aline Rougier
PEDOT:PSS-V2O5 Hybrid for Color Adjustement in Electrochromic Systems
Frontiers in Materials
electrochromism
PEDOT:PSS
V2O5
color tuning
bar coating
hybrid materials
title PEDOT:PSS-V2O5 Hybrid for Color Adjustement in Electrochromic Systems
title_full PEDOT:PSS-V2O5 Hybrid for Color Adjustement in Electrochromic Systems
title_fullStr PEDOT:PSS-V2O5 Hybrid for Color Adjustement in Electrochromic Systems
title_full_unstemmed PEDOT:PSS-V2O5 Hybrid for Color Adjustement in Electrochromic Systems
title_short PEDOT:PSS-V2O5 Hybrid for Color Adjustement in Electrochromic Systems
title_sort pedot pss v2o5 hybrid for color adjustement in electrochromic systems
topic electrochromism
PEDOT:PSS
V2O5
color tuning
bar coating
hybrid materials
url https://www.frontiersin.org/article/10.3389/fmats.2020.00078/full
work_keys_str_mv AT romainfutsch pedotpssv2o5hybridforcoloradjustementinelectrochromicsystems
AT issammjejri pedotpssv2o5hybridforcoloradjustementinelectrochromicsystems
AT harenarakotozafy pedotpssv2o5hybridforcoloradjustementinelectrochromicsystems
AT alinerougier pedotpssv2o5hybridforcoloradjustementinelectrochromicsystems