Impact of impedance on electrochromic properties of W-doped V2O5 films
Two series of W-doped V2O5 films, planar films, and inverse opal films, were synthesized. The evolution of their electrochromic properties, including switching time, cycling stability, and color efficiency (CE), were systematically investigated as a function of electrochemical impedance. Both charge...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Next Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822824000467 |
| _version_ | 1797237758905810944 |
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| author | Hua Li Jun Liao Yuwei Liu Yufei Deng Jian Liang Zhijuan Tang Fangbo Liu Jacques Robichaud Min Huang Yuandong Tong Yahia Djaoued |
| author_facet | Hua Li Jun Liao Yuwei Liu Yufei Deng Jian Liang Zhijuan Tang Fangbo Liu Jacques Robichaud Min Huang Yuandong Tong Yahia Djaoued |
| author_sort | Hua Li |
| collection | DOAJ |
| description | Two series of W-doped V2O5 films, planar films, and inverse opal films, were synthesized. The evolution of their electrochromic properties, including switching time, cycling stability, and color efficiency (CE), were systematically investigated as a function of electrochemical impedance. Both charge transfer resistance (Rct) and ion diffusion ability (KΩ) increase with the W:V atomic ratio in both planar films and inverse opal films series. KΩ plays a decisive role on coloration switching time, for instance, there exists a range of KΩ where switching time vastly decreases with an increase of KΩ and beyond this range, switching time is independent of KΩ and remains constant. The introduction of macroporosity, however, greatly reduces the low critic KΩ. CE is co-affected by both KΩ and Rct. KΩ and Rct collaboratively impact on EC cycling stability: KΩ plays a key role on cycling stability since the best cycling stability corresponds to highest KΩ. Rct plays its role only when it is low enough to reduce the possibility of chemical dissolution of the intermediate product of vanadium-containing ions: the present critical value could be around 76 Ω. |
| first_indexed | 2024-04-24T17:24:51Z |
| format | Article |
| id | doaj.art-6587d34af9174e0eab063dabf3515894 |
| institution | Directory Open Access Journal |
| issn | 2949-8228 |
| language | English |
| last_indexed | 2024-04-24T17:24:51Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Materials |
| spelling | doaj.art-6587d34af9174e0eab063dabf35158942024-03-28T06:41:21ZengElsevierNext Materials2949-82282024-01-012100149Impact of impedance on electrochromic properties of W-doped V2O5 filmsHua Li0Jun Liao1Yuwei Liu2Yufei Deng3Jian Liang4Zhijuan Tang5Fangbo Liu6Jacques Robichaud7Min Huang8Yuandong Tong9Yahia Djaoued10Department of Materials Chemistry, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen, Jiangxi, 333403, PR China,; Laboratoire de Recherche en Matériaux et Micro-spectroscopies Raman et FTIR, Université de Moncton-Campus de Shippagan, Shippagan, NB E8S1P6, CanadaDepartment of Materials Chemistry, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen, Jiangxi, 333403, PR China,Department of Materials Chemistry, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen, Jiangxi, 333403, PR China,Department of Materials Chemistry, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen, Jiangxi, 333403, PR China,National Engineering Research Centre for Domestic & Building Ceramics, Jingdezhen Ceramic University, Jingdezhen, Jiangxi, 333001, PR China,Department of Materials Chemistry, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen, Jiangxi, 333403, PR China,Department of Materials Chemistry, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen, Jiangxi, 333403, PR China,Laboratoire de Recherche en Matériaux et Micro-spectroscopies Raman et FTIR, Université de Moncton-Campus de Shippagan, Shippagan, NB E8S1P6, CanadaDepartment of Materials Chemistry, School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen, Jiangxi, 333403, PR China,Jingdezhen Lehua Ceramic Sanitary Ware Co., Ltd, Jingdezhen, Jiangxi, 333403, PR ChinaLaboratoire de Recherche en Matériaux et Micro-spectroscopies Raman et FTIR, Université de Moncton-Campus de Shippagan, Shippagan, NB E8S1P6, Canada; Corresponding author.Two series of W-doped V2O5 films, planar films, and inverse opal films, were synthesized. The evolution of their electrochromic properties, including switching time, cycling stability, and color efficiency (CE), were systematically investigated as a function of electrochemical impedance. Both charge transfer resistance (Rct) and ion diffusion ability (KΩ) increase with the W:V atomic ratio in both planar films and inverse opal films series. KΩ plays a decisive role on coloration switching time, for instance, there exists a range of KΩ where switching time vastly decreases with an increase of KΩ and beyond this range, switching time is independent of KΩ and remains constant. The introduction of macroporosity, however, greatly reduces the low critic KΩ. CE is co-affected by both KΩ and Rct. KΩ and Rct collaboratively impact on EC cycling stability: KΩ plays a key role on cycling stability since the best cycling stability corresponds to highest KΩ. Rct plays its role only when it is low enough to reduce the possibility of chemical dissolution of the intermediate product of vanadium-containing ions: the present critical value could be around 76 Ω.http://www.sciencedirect.com/science/article/pii/S2949822824000467W-doped V2O5 filmsImpedanceSwitching timeCycling stabilityColor efficiency |
| spellingShingle | Hua Li Jun Liao Yuwei Liu Yufei Deng Jian Liang Zhijuan Tang Fangbo Liu Jacques Robichaud Min Huang Yuandong Tong Yahia Djaoued Impact of impedance on electrochromic properties of W-doped V2O5 films Next Materials W-doped V2O5 films Impedance Switching time Cycling stability Color efficiency |
| title | Impact of impedance on electrochromic properties of W-doped V2O5 films |
| title_full | Impact of impedance on electrochromic properties of W-doped V2O5 films |
| title_fullStr | Impact of impedance on electrochromic properties of W-doped V2O5 films |
| title_full_unstemmed | Impact of impedance on electrochromic properties of W-doped V2O5 films |
| title_short | Impact of impedance on electrochromic properties of W-doped V2O5 films |
| title_sort | impact of impedance on electrochromic properties of w doped v2o5 films |
| topic | W-doped V2O5 films Impedance Switching time Cycling stability Color efficiency |
| url | http://www.sciencedirect.com/science/article/pii/S2949822824000467 |
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