A complementary electrochromic device based on carbon nanotubes/conducting polymers

Shen, Kuan-Yu; Hu, Chih‐Wei; Chang, Li-Chiu; Ho, Kuo–Chuan

doi:10.1016/j.solmat.2011.11.020

Cited by 44 publications

(19 citation statements)

References 25 publications

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“…The overall reaction, involving ion insertion (extraction) in (out of) the PANI film to balance the charge, can be represented as follows [19]: …”

Section: Clomentioning

confidence: 99%

Characterization of Electrochromic Properties of Polyaniline Thin Films Electropolymerized in H2SO4 Solution

Ninh¹,

Thảo²,

Long³

et al. 2016

OJOPM

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Polyaniline (PANI) onto indium-doped tin-oxide (ITO)-coated glass samples were prepared by electroopolymerization in 0.5 M H 2 SO 4 solution. Structure and morphology characterization of the PANI films demonstrated that the films were grown onto ITO substrates in the form of polycrystalline microbelts separated by micropores. By analysing the UV-Vis absorption spectra of the PANI films, the energy bandgap was found to be approximately 2.75 eV. The PANI/ITO films exhibited a good reversible electrochromic display (ECD) performance when cycled in 0.1 M LiClO 4 + pro-pylene carbonate. The response time of the ECD coloration was found to be as small as 15 s and the coloration efficiency was found to be 8.85 cm 2 × C −1 . After 100 cycles of the ECD performance, the cyclic voltammetry curve of the working electrode maintained unchanged. This demonstrates that the electropolymerized PANI films can be served as a good candidate for ECD applications, taking advantage of their excellent properties in terms of chemical stability.

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“…The overall reaction, involving ion insertion (extraction) in (out of) the PANI film to balance the charge, can be represented as follows [19]: …”

Section: Clomentioning

confidence: 99%

Characterization of Electrochromic Properties of Polyaniline Thin Films Electropolymerized in H2SO4 Solution

Ninh¹,

Thảo²,

Long³

et al. 2016

OJOPM

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“…During the reduction (cathodic peak at 0.25 V), the ClO ions of LiClO PC electrolyte solution were excluded the PANI thin film. The overall reaction involving ion diffusion-in and diffusion-out of the polymer matrix to balance the charge, can be represented as in (1) for PANI [17] ANI ClO ANI ClO Yellow Green (1) where is the number of repeated units and is the stoichiometric number of the counter ion [17]. The cyclic voltammetry curves of the best PMeT thin film (charge density of 30 mC/cm ) were shown in Fig.…”

Section: B Charge Density and Cycling Stability Of The Pani/ito/glasmentioning

confidence: 99%

“…During the reduction (cathodic peak at 0.5 V), the ClO ions of LiClO PC electrolyte solution were excluded the PMeT thin film. The overall reaction involving ion diffusion -in and -out of the polymer matrix to balance the charge, can be represented as in (1) for PMeT [17] MeT ClO MeT ClO…”

Section: B Charge Density and Cycling Stability Of The Pani/ito/glasmentioning

confidence: 99%

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Electrochromic Characteristics of Polyaniline and Poly(3-Methylthiophene) Thin Films for Display

Chou

Liu

Yang

et al. 2015

J. Display Technol.

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In this study, the polyaniline (PANI) and the poly(3-methylthiophene) (PMeT) of the conductive polymer electrochromic thin films had been deposited on the indium tin oxide/glass (ITO/Glass) substrate by electrochemical polymerization, respectively. The cycling stability of the electrochromic thin film prepared with the variety of the different charge densities was investigated. The electrochromic behaviors of the PMeT/ITO/Glass and PANI/ITO/Glass were performed in the electrolytes of 0.1 M lithium perchlorate LiClO /propylene carbonate (PC) and 0.1 M LiClO M perchloric acid HClOPC, respectively. The colors of the PMeT thin film exhibited blue and red in oxidation and reduction states, respectively. And the colors of the PANI thin film exhibited green and yellow in oxidation and reduction states, respectively. Furthermore, the absorbance and transmittance (T%) of the electrochromic thin film were measured by ultraviolet-visible (UV-Visible) spectrometer in this study. Besides, in order to find the optimal manufacture conditions of the electrochromic thin film, the potentials of redox reaction and cycles were investigated by the cyclic voltammetry (CV) measurement system to analyze the cycling stability of the electrochromic thin film with the variety of the different charge densities. Finally, the reflectance (R%) of the optimal parameters of the electrochromic thin film was measured by chroma meter in this study. And the variational colors of the electrochromic thin film were observed by the chromaticity coordinates of the Commission Internationale de l'Eclairage (CIE), so that the electrochromic thin film can be applied to the filed of display.

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“…As a kind of electrochromic material (ECM), conducting polymer has become one of the most important fields in functional material science due to its highly controlled conjugated molecular structure, flexible mechanical property, rapid response, excellent coloration efficiency and long life and many other specialties, which can be used widely in large-area display [1,2], storage devices [3], military camouflage [4], smart windows [5], anti-glare mirrors for cars [6] and so on. Among those conducting polymers, polyaniline (PANI) have attracted more and more attentions because of their adjustable conductivity from insulating to conducting range by a reversible doping and de-doping process [7].…”

Section: Introductionmentioning

confidence: 99%

Multicolored Polyanilines Doped by Different Acid Dyes and Their Electrochromic Property

Zheng

2016

MATEC Web Conf.

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Abstract. Multicolored polyanilines (PANIs) are synthesized by using different acid dyes containing sulfonic acid group as the functional dopant. It is found that the FTIR spectra of the acid dye doped PANI and pure PANI are similar with each other, which are all doped state PANI, and the new arising peaks indicate the acid dyes existing in the PANI molecular. The UV-Visible spectra show that the different acid dye doped PANI present different colors as the effect of the chromophore of the acid dye. From the CV curves, it is clear that all the acid dye doped PANIs exist two pairs of oxidation and reduction peaks with vivid reversibly multicolor changes from light color (-0.5~0V) to dark color (0~0.8V). It is shown that acid dye doping is an effective method to broaden the color change range of the electrochromic mateials.

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A complementary electrochromic device based on carbon nanotubes/conducting polymers

Cited by 44 publications

References 25 publications

Characterization of Electrochromic Properties of Polyaniline Thin Films Electropolymerized in H<sub>2</sub>SO<sub>4</sub> Solution

Characterization of Electrochromic Properties of Polyaniline Thin Films Electropolymerized in H<sub>2</sub>SO<sub>4</sub> Solution

Electrochromic Characteristics of Polyaniline and Poly(3-Methylthiophene) Thin Films for Display

Multicolored Polyanilines Doped by Different Acid Dyes and Their Electrochromic Property

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A complementary electrochromic device based on carbon nanotubes/conducting polymers

Cited by 44 publications

References 25 publications

Characterization of Electrochromic Properties of Polyaniline Thin Films Electropolymerized in H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt; Solution

Characterization of Electrochromic Properties of Polyaniline Thin Films Electropolymerized in H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt; Solution

Electrochromic Characteristics of Polyaniline and Poly(3-Methylthiophene) Thin Films for Display

Multicolored Polyanilines Doped by Different Acid Dyes and Their Electrochromic Property

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Product

Resources

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Characterization of Electrochromic Properties of Polyaniline Thin Films Electropolymerized in H<sub>2</sub>SO<sub>4</sub> Solution

Characterization of Electrochromic Properties of Polyaniline Thin Films Electropolymerized in H<sub>2</sub>SO<sub>4</sub> Solution