Enhanced electrochromic performance of WO 3 hybrids using polymer plasma hybridization process

Eren, Esin; Alver, Ceyda; Karaca, Gözde Yurdabak; Uygun, Emre; Öksüz, Ayşegül Uygun

doi:10.1016/j.synthmet.2017.12.003

Cited by 34 publications

(28 citation statements)

References 46 publications

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“…Energy storage devices based on electrochromic materials function as supercapacitors on the basis ion intercalation into TMO electrode. 60,61 Herein, the electrochromic double-layer dual-ion device investigated possesses a high optical transparency in the charged state (80%) and a low optical transparency when discharged (0.5%) ( Fig. 5(a)).…”

Section: ) †)mentioning

confidence: 99%

Rechargeable Zn^2+/Al³⁺ dual-ion electrochromic device with long life time utilizing dimethyl sulfoxide (DMSO)-nanocluster modified hydrogel electrolytes

Hopmann

Adulhakem

2019

RSC Adv.

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Despite recent advances in hydrogel electrolytes for flexible electrochemical energy storage, ion conductors still exhibit some major shortcomings including low ionic conductivity and short lifetimes. As such, for applications in electrochromic batteries, a transparent, highly conductive electrolyte based on a dimethyl-sulfoxide (DMSO) modified polyacrylamide (PAM) hydrogel is being developed and implemented in a dual-ion Zn 2+ /Al 3+ electrochromic device consisting of a Zn anode and WO 3 cathode.Gelation in a DMSO : H 2 O mixed solvent leads to highly increased electrolyte retention in the hydrogel and prolonged life time for ionic conduction. The hydrogel-based electrochromic device offers a specific charge capacity of 16.9 mAh cm À2 at a high current density of 200 mA cm À2 while retaining 100% coulombic efficiency over 200 charge-discharge cycles. While the DMSO-modified electrolyte shows ionic conductivities up to 27 mS cm À1 at room temperature, the formation of DMSO : H 2 O nanoclusters enables ionic conduction even at temperatures as low as À15 C and retention of ionic conduction over more than 4 weeks. Furthermore, the electrochromic WO 3 cathode gives the device a controllable absorption with up to 80% change in transparency. Based on low-cost, earth abundant materials like W (tungsten), Zn (zinc) and Al (aluminum) and a scalable fabrication process, the introduced hydrogel-based electrochromic device shows great potential for next-generation flexible and wearable energy storage systems.

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Section: ) †)mentioning

confidence: 99%

Rechargeable Zn^2+/Al³⁺ dual-ion electrochromic device with long life time utilizing dimethyl sulfoxide (DMSO)-nanocluster modified hydrogel electrolytes

Hopmann

Adulhakem

2019

RSC Adv.

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“…One of which is to compound PANI with metal oxides. Eren E synthesized WO 3 /PANI nanocomposites through in‐situ polymerization of aniline and N‐methylaniline functionalized WO 3 powders, which brought better benefits to the electrochromic properties of PANI, especially, fast switching speed, high optical contrast and high coloration efficiency. Jamdegni M combined PANI with functionalized zinc oxide (fZnO) nanoparticles by electrochemical polymerization to obtain PANI‐fZnO composite.…”

Section: Introductionmentioning

confidence: 99%

Covalent Bonding of PANI and p‐Phenylenediamine‐Functionalized GO Using N,N′‐Dicyclohexylcarbodiimide as Dehydrating Agent for Electrochromic Applications

et al. 2019

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In this paper, a high‐performance organic/inorganic electrochromic material was synthesized by covalent bonding of polyaniline (PANI) and graphene oxide (GO). In the presence of N,N′‐dicyclohexylcarbodiimide (DCC) as dehydrating agent, GO was functionalized by p‐phenylenediamine (PPD) through an amidation reaction. Water‐processable PANI‐GO nanocomposites were prepared by copolymerization of aniline with PPD functionalized GO in the presence of poly(styrene sulfonate) (PSS) dopant in an aqueous medium. The structures and morphologies of PANI‐GO nanocomposites were characterized by Fourier‐transform infrared (FTIR) spectra, Raman spectra, transmission electron microscope (TEM) and scanning electron microscope (SEM). The results show that covalent bonding PANI‐GO nanocomposites possess better electrochemical and electrochromic properties over that of neat PANI. With 3 wt.% GO‐PPD loading, PANI‐GO‐3% exhibits the optimal electrochemical and electrochromic properties, among which the charge‐transfer resistance (RCT) is 29.4 Ω, the optical contrast is 0.72 and coloring/bleaching time is 4.45/4.28 s. Overdose GO‐PPD leads to negative influence on the contrast and switching speed, owing to the ion blocking effect brought by its two‐dimensional nanostructure.

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“…Vanadium pentoxide (V 2 O 5 ) has both anodic and cathodic electrochromism features and shows multicolor changes during electrochemical reaction . V 2 O 5 is a typical Li + intercalation material, in respect of its layered structure with good cation intercalation ability, making it especially valuable for battery and electrochromic applications . However, the optical contrast is rather weak as compared to some EC materials (such as WO 3 ).…”

Section: Introductionmentioning

confidence: 99%

“…During the past decades, various reports have focused on the construction of the modification of WO 3 electrodes and assembly of a single‐active‐layer ECDs , but ignore its practical application in complementary ECDs . In order to obtain ECD with improved EC performance, the ion storage layer (electrochromic counter‐electrode, V 2 O 5 film) serves as a complementary layer.…”

Section: Introductionmentioning

confidence: 99%

“…The aim of this study is to elucidate details of WO 3 ‐PEDOT, WO 3 ‐PFu and V 2 O 5 thin films as electrochromic electrodes, such as characterization of the films using scanning electron microscopy‐energy dispersive X‐ray spectroscopy (SEM‐EDS) and electrochemical impedance spectroscopy (EIS) measurements. To prepare hybrid materials, plasma nanocoating process was used because of its advantages of ensuring well‐controlled deposition in simple and single step, being solvent‐free, nontoxic . The hybrid‐based WO 3 ‐PEDOT or WO 3 ‐PFu electrochromic materials were selected as electrochromic working electrode.…”

Section: Introductionmentioning

confidence: 99%

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High‐performance Flexible Complementary Electrochromic Device Based on Plasma Modified WO₃Nano Hybrids and V₂O₅Nanofilm with Low Operation Voltages

et al. 2018

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Tungsten trioxide‐poly(3,4‐ethylenedioxythiophene) (WO3‐PEDOT) and tungsten trioxide‐polyfuran (WO3‐PFu) were prepared by rf rotating plasma polymerization. Electrochromic hybrid thin films were fabricated onto flexible polyethylene terephthalate (PET)/ indium tin oxide (ITO) film using electron beam evaporation method. In order to deeply characterize all films, scanning electron microscopy‐energy dispersive X‐ray spectroscopy (SEM‐EDS) and electrochemical impedance spectroscopy (EIS) techniques were used. The counter electrode effect on plasma modified WO3 nano hybrids‐based electrochromic devices (ECDs) was evaluated. By incorporating flexible vanadium pentoxide (V2O5) film as counter electrode, complementary ECDs were constructed through combining the hybrid flexible films (WO3‐PEDOT, WO3‐PFu) as working electrodes, which exhibit highly efficient electrochromic performance with low voltage operation. Especially, WO3‐PEDOT/V2O5‐based ECD owns a high optical modulation of 61.5 % at 750 nm driven by −1.0 V (coloration) and +1 V (bleaching) with fast response times (coloration time: 13.58 s, bleaching time: 8.07 s) and a high coloration efficiency of 527 cm2 C−1. This study can supply useful and efficient avenue for designing flexible complementary electrochromic device for energy‐saving flexible electronics.

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Enhanced electrochromic performance of WO 3 hybrids using polymer plasma hybridization process

Cited by 34 publications

References 46 publications

Rechargeable Zn^2+/Al³⁺ dual-ion electrochromic device with long life time utilizing dimethyl sulfoxide (DMSO)-nanocluster modified hydrogel electrolytes

Rechargeable Zn^2+/Al³⁺ dual-ion electrochromic device with long life time utilizing dimethyl sulfoxide (DMSO)-nanocluster modified hydrogel electrolytes

Covalent Bonding of PANI and p‐Phenylenediamine‐Functionalized GO Using N,N′‐Dicyclohexylcarbodiimide as Dehydrating Agent for Electrochromic Applications

High‐performance Flexible Complementary Electrochromic Device Based on Plasma Modified WO₃Nano Hybrids and V₂O₅Nanofilm with Low Operation Voltages

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Enhanced electrochromic performance of WO 3 hybrids using polymer plasma hybridization process

Cited by 34 publications

References 46 publications

Rechargeable Zn2+/Al3+ dual-ion electrochromic device with long life time utilizing dimethyl sulfoxide (DMSO)-nanocluster modified hydrogel electrolytes

Rechargeable Zn2+/Al3+ dual-ion electrochromic device with long life time utilizing dimethyl sulfoxide (DMSO)-nanocluster modified hydrogel electrolytes

Covalent Bonding of PANI and p‐Phenylenediamine‐Functionalized GO Using N,N′‐Dicyclohexylcarbodiimide as Dehydrating Agent for Electrochromic Applications

High‐performance Flexible Complementary Electrochromic Device Based on Plasma Modified WO3Nano Hybrids and V2O5Nanofilm with Low Operation Voltages

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Rechargeable Zn^2+/Al³⁺ dual-ion electrochromic device with long life time utilizing dimethyl sulfoxide (DMSO)-nanocluster modified hydrogel electrolytes

Rechargeable Zn^2+/Al³⁺ dual-ion electrochromic device with long life time utilizing dimethyl sulfoxide (DMSO)-nanocluster modified hydrogel electrolytes

High‐performance Flexible Complementary Electrochromic Device Based on Plasma Modified WO₃Nano Hybrids and V₂O₅Nanofilm with Low Operation Voltages