A stable, self-regulating, flexible, ITO-free electrochromic smart window for energy-efficient buildings

Zhang, He1,2; Sun, Fangyuan2; Feng, Jiayun1; Ling, Huan2; Zhou, Dongyan2; Cao, Ge2; Wang, Shang1; Su, Fengyu3; Tian, Yanqing2,4; Tian, Yanhong1,5

2022-12-21

10.1016/j.xcrp.2022.101193

CELL REPORTS PHYSICAL SCIENCE   Impact Factor & Quartile

2666-3864

Electrochromic devices (ECDs) as smart windows can modulate transmittance of sunlight under an electric potential. There is significant research interest in applying the design principles of ECDs to flexible systems. Herein, we report a smart, self-powered, flexible electrochromic system with self-regulating features and state-of-the-art stability and flexibility. The flexible ECD (FECD) system is composed of Ag@Au core-shell nanowires as flexible transparent electrodes, ethyl viologen as chromophore, and commercial solar cells. The FECDs exhibit high optical contrast (40.3% at 605 nm), cyclic stability, flexibility, and energy-storage performance (6.02 mF/ cm2), which are superior to those of the FECD using indium tin oxide (ITO) as electrodes. Furthermore, when connected with a commercial solar cell, the obtained electrochromic system can adjust the transmittance with the sunlight intensity in real time, demonstrating potential as a smart curtain for saving energy and improving living experience.

SCI

English

Corresponding

National Natural Science Foundation of China[52175300] ; Fundamental Research Funds for the Central Universities[2022FR FK060008] ; Shenzhen Fundamental Research Programs[JCYJ20200925160843002] ; Heilongjiang Touyan Innovation Team Program[HITTY-20190013]

Chemistry ; Energy & Fuels ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Multidisciplinary

WOS:000908479500003

ELSEVIER

Web of Science

1.Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Key Lab Energy Convers & Storage Technol, Minist Educ, Shenzhen 518055, Peoples R China
5.Harbin Inst Technol, Zhengzhou Res Inst, Zhengzhou 450041, Peoples R China

Zhang, He,Sun, Fangyuan,Feng, Jiayun,et al. A stable, self-regulating, flexible, ITO-free electrochromic smart window for energy-efficient buildings[J]. CELL REPORTS PHYSICAL SCIENCE,2022,3(12).

Zhang, He.,Sun, Fangyuan.,Feng, Jiayun.,Ling, Huan.,Zhou, Dongyan.,...&Tian, Yanhong.(2022).A stable, self-regulating, flexible, ITO-free electrochromic smart window for energy-efficient buildings.CELL REPORTS PHYSICAL SCIENCE,3(12).

Zhang, He,et al."A stable, self-regulating, flexible, ITO-free electrochromic smart window for energy-efficient buildings".CELL REPORTS PHYSICAL SCIENCE 3.12(2022).