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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 |
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creator | Deng, Yufei 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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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%.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma17194680</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>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</subject><ispartof>Materials, 2024-09, Vol.17 (19), p.4680</ispartof><rights>2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). 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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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