-Unveiling dynamics evolution mechanism of electrochromic process in WO3-x film with thickness dependence
文献类型：期刊论文
| 作者 | Chen, Lirong1,2; Zheng, Jieyuan2; Chen, Xiaoli2; Zheng, Yang2; Wang, Xingru1,2; Ge, Rui1,2; Jiang, Chengyu1,2; Xu, Gang1,2; Zhong, Liuwen1,2; Zhu, Yanqing2 |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2024-11-20 |
| 卷号 | 505页码:15 |
| 关键词 | Electrochromism Electrochemical dynamics Response time Thickness dependence |
| ISSN号 | 0013-4686 |
| DOI | 10.1016/j.electacta.2024.144958 |
| 通讯作者 | Xiao, Xiudi(xiaoxiudi@scut.edu.cn) |
| 英文摘要 | Response time (tau, defined as the time required for 90% change in the full transmittance modulation, including coloring time tau(c) and bleaching time tau(b)) is an important evaluation index for the performance of electrochromic (EC) materials, and it can directly reflect the microscopic rate of EC process. However, the research on the internal relationship between the response time and the process of electrochemical dynamics is rare. Herein, by controlling the thickness of the WO3-x EC film, a complete reversal of the response time (from tau(c) > tau(b) in the thinner film to tau(b) > tau(c) in the thicker film) is observed. Based on the detailed analysis of the characteristics presented in electrochemical impedance spectroscopy (EIS), especially focusing on the changing trend about the arc of different frequency ranges and the slope value of the linear part, it can be found that this reversal is due to the change of the main dynamics process from surface capacitive-controlled to bulk diffusion-controlled with the increase of WO3-x film thickness. Meanwhile, this change with obvious film thickness dependence requires a "trigger", which is reflected by the bleaching threshold potential. Besides, this study reveals the three stages of the EC coloring process from the perspective of dynamics, including the lithium-ions (Li-ions) adsorption charge layer, surface Faraday process, and bulk Faraday process, which also show significant film thickness dependence. The result of this work is beneficial to modulate the balance of response time and to improve the performance of EC films. |
| WOS关键词 | ELECTROCHEMICAL ENERGY-STORAGE ; TUNGSTEN-OXIDE FILMS ; TIO2 ANATASE ; PERFORMANCE ; TRANSITION ; LI+ ; PSEUDOCAPACITOR ; NANOWIRES ; BEHAVIOR ; BATTERY |
| 资助项目 | National Natural Science Foundation of China[62375268] ; Open fund of State Key Laboratory of Luminescent Materials and Devices[2023-skllmd-05] ; Natural Science Foundation of Guangdong Province[2024A1515011954] ; Natural Science Foundation of Guangdong Province[2023A1515010345] ; Guangdong Province Key Field R&D Program Project[2023B0101200002] |
| WOS研究方向 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:001306788100001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Open fund of State Key Laboratory of Luminescent Materials and Devices ; Natural Science Foundation of Guangdong Province ; Guangdong Province Key Field R&D Program Project |
| 源URL | [http://ir.giec.ac.cn/handle/344007/42889]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Xiao, Xiudi |
| 作者单位 | 1.Univ Sci & Technol China, Sch Energy Sci & Engn, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510640, Peoples R China 4.South China Univ Technol, Sch Mat Sci & Engn, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Lirong,Zheng, Jieyuan,Chen, Xiaoli,et al. -Unveiling dynamics evolution mechanism of electrochromic process in WO3-x film with thickness dependence[J]. ELECTROCHIMICA ACTA,2024,505:15. |
| APA | Chen, Lirong.,Zheng, Jieyuan.,Chen, Xiaoli.,Zheng, Yang.,Wang, Xingru.,...&Xiao, Xiudi.(2024).-Unveiling dynamics evolution mechanism of electrochromic process in WO3-x film with thickness dependence.ELECTROCHIMICA ACTA,505,15. |
| MLA | Chen, Lirong,et al."-Unveiling dynamics evolution mechanism of electrochromic process in WO3-x film with thickness dependence".ELECTROCHIMICA ACTA 505(2024):15. |
入库方式： OAI收割
来源：广州能源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。