Nanoparticulate films of WO3 and MoO3 composites for enhancing UV light electrochromic transmittance variation and energy storage applications

Chia Chun Wei; Tung Han Wu; Jun Wei Huang; Ben Li Young; Wen Bin Jian; Yu Liang Lin; Jiun Tai Chen; Chain Shu Hsu; Yuan Ron Ma; Kazuhito Tsukagoshi

doi:10.1016/j.electacta.2023.141897

Nanoparticulate films of WO₃ and MoO₃ composites for enhancing UV light electrochromic transmittance variation and energy storage applications

Chia Chun Wei, Tung Han Wu, Jun Wei Huang, Ben Li Young, Wen Bin Jian^*, Yu Liang Lin, Jiun Tai Chen, Chain Shu Hsu, Yuan Ron Ma, Kazuhito Tsukagoshi

^*Corresponding author for this work

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11 Scopus citations

Abstract

Green technologies for the manufacture of optical shutters retain a sustainable development. In this work, the electro-exploding wires and spray coating technologies are employed to deposit nanoparticulate (WO₃)_1-x(MoO₃)_x composite films. MoO₃ NPs are introduced to enhance electrochromic (EC) transmittance variation of violet and UV light with wavelengths ranging from 330 to 450 nm. Measurements of EC performances of (WO₃)_1-x(MoO₃)_x composite films in a potentiostat are carried out to discern beneficial from MoO₃ addition. It is observed that the diffusion coefficient and the charge density increase with an increment of MoO₃ concentration. The coloration efficiency at 430 nm raises apparently whereas that at 633 nm does not show a significant variation with increasing MoO₃ concentrations. In addition, the EC device with ∼12.5% of MoO₃ introduced reveals a much higher optical modulation at 430 nm. From the measurements of galvanostatic charge-discharge curves of EC films in the potentiostat, the areal capacitances of 12.9 and 14.0 mF/cm² are estimated for pure and ∼12.5% MoO₃ introduced WO₃ EC films. The EC batteries are demonstrated and the enlarged energy storage capability with an addition of MoO₃ is observed. The simple introduction of MoO₃ into WO₃ nanoparticulate films compensates drawbacks of WO₃ films and enhances EC performances and energy storage capabilities.

Original language	English
Article number	141897
Journal	Electrochimica Acta
Volume	442
DOIs	https://doi.org/10.1016/j.electacta.2023.141897
State	Published - 20 Feb 2023

Keywords

Electrochromic devices
Molybdenum trioxides
Nanoparticle composites
Tungsten trioxides
Violet light shutter

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10.1016/j.electacta.2023.141897

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Wei, C. C., Wu, T. H., Huang, J. W., Young, B. L., Jian, W. B., Lin, Y. L., Chen, J. T., Hsu, C. S., Ma, Y. R., & Tsukagoshi, K. (2023). Nanoparticulate films of WO₃ and MoO₃ composites for enhancing UV light electrochromic transmittance variation and energy storage applications. Electrochimica Acta, 442, Article 141897. https://doi.org/10.1016/j.electacta.2023.141897

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title = "Nanoparticulate films of WO3 and MoO3 composites for enhancing UV light electrochromic transmittance variation and energy storage applications",

abstract = "Green technologies for the manufacture of optical shutters retain a sustainable development. In this work, the electro-exploding wires and spray coating technologies are employed to deposit nanoparticulate (WO3)1-x(MoO3)x composite films. MoO3 NPs are introduced to enhance electrochromic (EC) transmittance variation of violet and UV light with wavelengths ranging from 330 to 450 nm. Measurements of EC performances of (WO3)1-x(MoO3)x composite films in a potentiostat are carried out to discern beneficial from MoO3 addition. It is observed that the diffusion coefficient and the charge density increase with an increment of MoO3 concentration. The coloration efficiency at 430 nm raises apparently whereas that at 633 nm does not show a significant variation with increasing MoO3 concentrations. In addition, the EC device with ∼12.5% of MoO3 introduced reveals a much higher optical modulation at 430 nm. From the measurements of galvanostatic charge-discharge curves of EC films in the potentiostat, the areal capacitances of 12.9 and 14.0 mF/cm2 are estimated for pure and ∼12.5% MoO3 introduced WO3 EC films. The EC batteries are demonstrated and the enlarged energy storage capability with an addition of MoO3 is observed. The simple introduction of MoO3 into WO3 nanoparticulate films compensates drawbacks of WO3 films and enhances EC performances and energy storage capabilities.",

keywords = "Electrochromic devices, Molybdenum trioxides, Nanoparticle composites, Tungsten trioxides, Violet light shutter",

author = "Wei, {Chia Chun} and Wu, {Tung Han} and Huang, {Jun Wei} and Young, {Ben Li} and Jian, {Wen Bin} and Lin, {Yu Liang} and Chen, {Jiun Tai} and Hsu, {Chain Shu} and Ma, {Yuan Ron} and Kazuhito Tsukagoshi",

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doi = "10.1016/j.electacta.2023.141897",

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T1 - Nanoparticulate films of WO3 and MoO3 composites for enhancing UV light electrochromic transmittance variation and energy storage applications

AU - Wei, Chia Chun

AU - Wu, Tung Han

AU - Huang, Jun Wei

AU - Young, Ben Li

AU - Jian, Wen Bin

AU - Lin, Yu Liang

AU - Chen, Jiun Tai

AU - Hsu, Chain Shu

AU - Ma, Yuan Ron

AU - Tsukagoshi, Kazuhito

PY - 2023/2/20

Y1 - 2023/2/20

N2 - Green technologies for the manufacture of optical shutters retain a sustainable development. In this work, the electro-exploding wires and spray coating technologies are employed to deposit nanoparticulate (WO3)1-x(MoO3)x composite films. MoO3 NPs are introduced to enhance electrochromic (EC) transmittance variation of violet and UV light with wavelengths ranging from 330 to 450 nm. Measurements of EC performances of (WO3)1-x(MoO3)x composite films in a potentiostat are carried out to discern beneficial from MoO3 addition. It is observed that the diffusion coefficient and the charge density increase with an increment of MoO3 concentration. The coloration efficiency at 430 nm raises apparently whereas that at 633 nm does not show a significant variation with increasing MoO3 concentrations. In addition, the EC device with ∼12.5% of MoO3 introduced reveals a much higher optical modulation at 430 nm. From the measurements of galvanostatic charge-discharge curves of EC films in the potentiostat, the areal capacitances of 12.9 and 14.0 mF/cm2 are estimated for pure and ∼12.5% MoO3 introduced WO3 EC films. The EC batteries are demonstrated and the enlarged energy storage capability with an addition of MoO3 is observed. The simple introduction of MoO3 into WO3 nanoparticulate films compensates drawbacks of WO3 films and enhances EC performances and energy storage capabilities.

AB - Green technologies for the manufacture of optical shutters retain a sustainable development. In this work, the electro-exploding wires and spray coating technologies are employed to deposit nanoparticulate (WO3)1-x(MoO3)x composite films. MoO3 NPs are introduced to enhance electrochromic (EC) transmittance variation of violet and UV light with wavelengths ranging from 330 to 450 nm. Measurements of EC performances of (WO3)1-x(MoO3)x composite films in a potentiostat are carried out to discern beneficial from MoO3 addition. It is observed that the diffusion coefficient and the charge density increase with an increment of MoO3 concentration. The coloration efficiency at 430 nm raises apparently whereas that at 633 nm does not show a significant variation with increasing MoO3 concentrations. In addition, the EC device with ∼12.5% of MoO3 introduced reveals a much higher optical modulation at 430 nm. From the measurements of galvanostatic charge-discharge curves of EC films in the potentiostat, the areal capacitances of 12.9 and 14.0 mF/cm2 are estimated for pure and ∼12.5% MoO3 introduced WO3 EC films. The EC batteries are demonstrated and the enlarged energy storage capability with an addition of MoO3 is observed. The simple introduction of MoO3 into WO3 nanoparticulate films compensates drawbacks of WO3 films and enhances EC performances and energy storage capabilities.

KW - Electrochromic devices

KW - Molybdenum trioxides

KW - Nanoparticle composites

KW - Tungsten trioxides

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SN - 0013-4686

VL - 442

JO - Electrochimica Acta

JF - Electrochimica Acta

M1 - 141897

ER -

Nanoparticulate films of WO₃ and MoO₃ composites for enhancing UV light electrochromic transmittance variation and energy storage applications

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