Study of a Novel Electrochromic Device with Crystalline WO<sub>3</sub> and Gel Electrolyte
Most ECDs are coated with an electrochromic material on the transparent conductive oxide (TCO) substrate. A novel electrochromic device (ECD), having a variable optical performance, was prepared by using tungsten foil as a substrate in this study. It was found that the WO<sub>3</sub> dis...
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MDPI AG
2022-03-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/7/1430 |
| _version_ | 1797437931444502528 |
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| author | Wanyu Chen Guixia Zhang Lili Wu Siyuan Liu Meng Cao Ying Yang Yong Peng |
| author_facet | Wanyu Chen Guixia Zhang Lili Wu Siyuan Liu Meng Cao Ying Yang Yong Peng |
| author_sort | Wanyu Chen |
| collection | DOAJ |
| description | Most ECDs are coated with an electrochromic material on the transparent conductive oxide (TCO) substrate. A novel electrochromic device (ECD), having a variable optical performance, was prepared by using tungsten foil as a substrate in this study. It was found that the WO<sub>3</sub> discoloration layer, having a monoclinic phase crystalline structure made of 600 °C calcined, had optimum charge transmission performance with PADA gel polymer electrolyte. Ionic conductivity of PADA gel polymer electrolyte was 2.3 × 10<sup>−3</sup> S cm<sup>−1</sup> at −20 °C, and it was possible to help Li<sup>+</sup> to implement embedding and extraction from WO<sub>3</sub> even in low-temperature conditions. The colored time (t<sub>c</sub>) and the bleached time (t<sub>b</sub>) of the electrochromic device were 15 s and 26 s, and it showed yellowish-brown in the colored state and navy blue in the bleached state. The ECD (WO<sub>3</sub>-600) exhibited good cycle stability reach at least 150 times. |
| first_indexed | 2024-03-09T11:29:40Z |
| format | Article |
| id | doaj.art-95cf439e87904b6ca1169135d2d044cc |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T11:29:40Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-95cf439e87904b6ca1169135d2d044cc2023-11-30T23:54:19ZengMDPI AGPolymers2073-43602022-03-01147143010.3390/polym14071430Study of a Novel Electrochromic Device with Crystalline WO<sub>3</sub> and Gel ElectrolyteWanyu Chen0Guixia Zhang1Lili Wu2Siyuan Liu3Meng Cao4Ying Yang5Yong Peng6School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, ChinaMost ECDs are coated with an electrochromic material on the transparent conductive oxide (TCO) substrate. A novel electrochromic device (ECD), having a variable optical performance, was prepared by using tungsten foil as a substrate in this study. It was found that the WO<sub>3</sub> discoloration layer, having a monoclinic phase crystalline structure made of 600 °C calcined, had optimum charge transmission performance with PADA gel polymer electrolyte. Ionic conductivity of PADA gel polymer electrolyte was 2.3 × 10<sup>−3</sup> S cm<sup>−1</sup> at −20 °C, and it was possible to help Li<sup>+</sup> to implement embedding and extraction from WO<sub>3</sub> even in low-temperature conditions. The colored time (t<sub>c</sub>) and the bleached time (t<sub>b</sub>) of the electrochromic device were 15 s and 26 s, and it showed yellowish-brown in the colored state and navy blue in the bleached state. The ECD (WO<sub>3</sub>-600) exhibited good cycle stability reach at least 150 times.https://www.mdpi.com/2073-4360/14/7/1430electrochromic devicecrystalline tungsten oxideionically cross-linked gelconductivity |
| spellingShingle | Wanyu Chen Guixia Zhang Lili Wu Siyuan Liu Meng Cao Ying Yang Yong Peng Study of a Novel Electrochromic Device with Crystalline WO<sub>3</sub> and Gel Electrolyte Polymers electrochromic device crystalline tungsten oxide ionically cross-linked gel conductivity |
| title | Study of a Novel Electrochromic Device with Crystalline WO<sub>3</sub> and Gel Electrolyte |
| title_full | Study of a Novel Electrochromic Device with Crystalline WO<sub>3</sub> and Gel Electrolyte |
| title_fullStr | Study of a Novel Electrochromic Device with Crystalline WO<sub>3</sub> and Gel Electrolyte |
| title_full_unstemmed | Study of a Novel Electrochromic Device with Crystalline WO<sub>3</sub> and Gel Electrolyte |
| title_short | Study of a Novel Electrochromic Device with Crystalline WO<sub>3</sub> and Gel Electrolyte |
| title_sort | study of a novel electrochromic device with crystalline wo sub 3 sub and gel electrolyte |
| topic | electrochromic device crystalline tungsten oxide ionically cross-linked gel conductivity |
| url | https://www.mdpi.com/2073-4360/14/7/1430 |
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