Layer-by-Layer Assembly of PEDOT:PSS and WO3 Nanoparticles: Enhanced Electrochromic Coloration Efficiency and Mechanism Studies by Scanning Electrochemical Microscopy

Han, Li; Liu, Liang; Lee, Pooi See; Mandler, Daniel; Lu, Xuehong

doi:10.1016/j.electacta.2015.05.147

Cited by 85 publications

(36 citation statements)

References 32 publications

(48 reference statements)

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“…An EC material with a high coloration efficiency can provide a large transmittance mod- ) [17,18]. "Switching time" is the amount of time required to pass most of the charge when a voltage change is applied [32].…”

Section: Resultsmentioning

confidence: 99%

PEDOT/WO₃ Hybrid Nanofiber Architectures for High Performance Electrochromic Devices

et al. 2016

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This study focuses on the electrochromic device (ECD) applications of poly(3,4‐ethylenedioxythiophene)/tungsten oxide (PEDOT/WO3) hybrid nanofibers prepared via electrospinning method. Nanoporous WO3 films were initially electrosynthesized on Pt sheet. The PEDOT layer was electropolymerized onto the entire surface of the WO3 nanoporous host framework in the presence of different ionic liquids: 1‐butyl‐3‐methylimidazolium tetrafluoroborate (BMIMBF4), 1‐butyl‐3‐methylimidazolium hexafluorophosphate (BMIMPF6), 1‐butyl‐ 3‐methylimidazolium bis(trifluoromethylsulfonyl) imide (BMIMTFSI), and 1‐butyl‐1‐methylpyrrolidinium bis(trifluoromethylsulfonyl) imide (BMPTFSI). The morphological features and elemental surface characterization of hybride nanofibers were monitored by scanning electron microscopy and energy dispersive X‐ray spectroscopy. ECDs changed color reversibly from transparent to light brown by switching from +3 V to −3 V. It was found that the highest optical modulation of 47.89 % and maximum coloration efficiency of 363.72 cm2/C is achieved for PEDOT/WO3/BMIMPF6 based electrochromic device. Hybrid nanofibers exhibited excellent long term stability even after 1000 chronoamperometric cycles. This work could not only push forward the facile preparation of PEDOT/WO3 nanofibers but also represent, for the first time, the possibility that the hybrid nanofibers could be a promising material for the highly efficient ECDs.

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Section: Resultsmentioning

confidence: 99%

PEDOT/WO₃ Hybrid Nanofiber Architectures for High Performance Electrochromic Devices

et al. 2016

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“…It can be stabilized in an aqueous solution of poly(styrene sulfonate) (PSS), which is its primary dopant to form a polymeric complex structure . Chang‐Jian et al and Ling et al reported that PEDOT:PSS incorporated with tungsten oxide, WO 3 , have been used to formulate an electrochromic ink to fabricate a hybrid type electrochromic device which exhibited a remarkable optical modulation and coloration efficiency, fast response time, and reasonably good electrochemical stability and can efficiently reduce the solar heat when used in smart windows, while Yuan et al reported the preparation of PEDOT:PSS NPs and GO ink‐based humidity sensors, with superior humidity sensing properties, short response and recovery time, excellent repeatability, and flexibility.…”

Section: Polymersmentioning

confidence: 99%

Multifaceted polymeric materials in three‐dimensional processing (3DP) technologies: Current progress and prospects

Oderinde

Kang

et al. 2018

Polymers for Advanced Techs

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Three‐dimensional printing (3DP) technologies, which are sets of powerful deposition methods employed to fabricate 3D objects with materials in the fields of material sciences and engineering, biomedical and biocompatible structural components, automotive, aviation, and polymers, among others, are currently rapidly developing manufacturing technologies. The methods have significant advantages, which include designing flexibility, enhanced geometrical freedom, low cost, and net shape manufacture, among others, over the traditional “subtractive” method. This review highlights the major 3D printing techniques, especially in the fields of advanced polymeric material fabrication and engineering, as well as the synergy in the incorporation of different types of polymeric materials and composites in a process that will lead to an enhancement of dimensional accuracy for 3D technologies. Furthermore, composite ink systems especially polymer‐based and hydrogel‐based in tissue engineering applications are also discussed.

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“…Although, these composite film structures mostly exhibit good switching speeds below 5.0 s due to the superb electrical conductivity of polymer-based materials, they still suffer from serious degradation of the electrochemical activity and kinetics under successive operating conditions, as a result of physically mixed inorganic/organic film structures to limit charge transport by boundary scattering between two different materials and to aggravate adhesion with substrates by ununiform distribution of inorganic particles in an organic matrix. This contributes to the critical point for the effective development of multifunctional devices with EC energy storage performance [19][20][21][22] . Therefore, the novel design of hybrid a-WO 3 film structures based on the unique advantages of each inorganic and organic material is suggested as an important approach for the improvement of EC energy storage performance.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional electrochromic energy storage devices by chemical cross-linking: impact of a WO3·H2O nanoparticle-embedded chitosan thin film on amorphous WO3 films

Koo

Kim

et al. 2020

NPG Asia Mater

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With the advent of multifunctional devices with electrochromic (EC) behavior and electrochemical energy storage, complementary design of film structures using inorganic-organic materials has shown great potential for developing EC energy storage devices. Herein, hybrid films consisting of WO 3 ·H 2 O nanoparticle (WHNP)-embedded chitosan thin films on amorphous WO 3 (a-WO 3 ) films were designed. By exploiting the hybrid effect of chitosan and WHNPs to generate unique chemical cross-linking between them, the designed films exhibited attractive EC behaviors compared to bare a-WO 3 films. These included fast switching speeds (4.0 s for coloration and 0.8 s for bleaching) due to enhanced electrical conductivity and Li-ion diffusivity, high coloration efficiency (62.4 cm 2 /C) as a result of increased electrochemical activity, and superb long-cycling retention (91.5%) after 1000 cycles due to improved electrochemical stability. In addition, hybrid films exhibited a noticeable energy storage performance with a high specific capacitance (154.0 F/g at a current density of 2 A/g) and a stable rate capability as a result of improved electrochemical activity and fast electrical conductivity, respectively. This resulted in brighter illumination intensity for the 1.5-V white-light-emitting diode due to improved energy density compared to a bare a-WO 3 film. Therefore, the results suggest a new design strategy for materials to realize the coincident application of multifunctional devices with EC energy storage performance.

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Layer-by-Layer Assembly of PEDOT:PSS and WO3 Nanoparticles: Enhanced Electrochromic Coloration Efficiency and Mechanism Studies by Scanning Electrochemical Microscopy

Cited by 85 publications

References 32 publications

PEDOT/WO₃ Hybrid Nanofiber Architectures for High Performance Electrochromic Devices

PEDOT/WO₃ Hybrid Nanofiber Architectures for High Performance Electrochromic Devices

Multifaceted polymeric materials in three‐dimensional processing (3DP) technologies: Current progress and prospects

Multifunctional electrochromic energy storage devices by chemical cross-linking: impact of a WO3·H2O nanoparticle-embedded chitosan thin film on amorphous WO3 films

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Layer-by-Layer Assembly of PEDOT:PSS and WO3 Nanoparticles: Enhanced Electrochromic Coloration Efficiency and Mechanism Studies by Scanning Electrochemical Microscopy

Cited by 85 publications

References 32 publications

PEDOT/WO3 Hybrid Nanofiber Architectures for High Performance Electrochromic Devices

PEDOT/WO3 Hybrid Nanofiber Architectures for High Performance Electrochromic Devices

Multifaceted polymeric materials in three‐dimensional processing (3DP) technologies: Current progress and prospects

Multifunctional electrochromic energy storage devices by chemical cross-linking: impact of a WO3·H2O nanoparticle-embedded chitosan thin film on amorphous WO3 films

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PEDOT/WO₃ Hybrid Nanofiber Architectures for High Performance Electrochromic Devices

PEDOT/WO₃ Hybrid Nanofiber Architectures for High Performance Electrochromic Devices