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Excellent Electrochromic Properties of Ti4+-Induced Nanowires V2O5 Films

Ti4+-doped V2O5 films with nanowires on top and a dense, long nanorod layer on the bottom were successfully fabricated using the spin-coating route. During the electrochromic cycling, charge transfer resistance (Rct) decreases while ion-diffusion ability (KΩ) rapidly drops in the first ten cycles an...

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Published in:Materials 2024-09, Vol.17 (19), p.4680
Main Authors: Deng, Yufei, Li, Hua, Liang, Jian, Liao, Jun, Huang, Min, Chen, Rui, Long, Yinggui, Robichaud, Jacques, Djaoued, Yahia
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container_issue 19
container_start_page 4680
container_title Materials
container_volume 17
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Li, Hua
Liang, Jian
Liao, Jun
Huang, Min
Chen, Rui
Long, Yinggui
Robichaud, Jacques
Djaoued, Yahia
description Ti4+-doped V2O5 films with nanowires on top and a dense, long nanorod layer on the bottom were successfully fabricated using the spin-coating route. During the electrochromic cycling, charge transfer resistance (Rct) decreases while ion-diffusion ability (KΩ) rapidly drops in the first ten cycles and then levels off. Low Rct and morphology of nanowires collaboratively improved the electrochromic behavior of Ti4+-doped V2O5 films by enhancing the charge transfer speed and minimizing polarization and dissolution. The obtained Ti4+-doped V2O5 film shows better electrochromic properties than the undoped V2O5 film, with a coloration efficiency (CE) of 34.15 cm2/C, coloration time of 9.00 s, and cyclic retention of 82.6% at cycle 100. In contrast, the corresponding values for the undoped V2O5 film were 23.57 cm2/C, 13.16 s, and 43.6%.
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subjects Acids
Charge transfer
Diffusion coating
Diffusion layers
Diffusion rate
Efficiency
Electrochromism
Electrodes
Electrolytes
Electron microscopes
Ethanol
Glass substrates
Lithium
Metal oxides
Morphology
Nanorods
Nanostructured materials
Nanowires
Retention
Spectrum analysis
Spin coating
Vanadium pentoxide
title Excellent Electrochromic Properties of Ti4+-Induced Nanowires V2O5 Films
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