中文版 | English
Title

Eradicating beta-trap induced bleached-state degradation in amorphous TiO2 electrochromic films

Author
Corresponding AuthorWen, Rui-Tao
Publication Years
2023
DOI
Source Title
ISSN
2542-5293
Volume30
Abstract
Titanium dioxide (TiO2) draw great attention in developing electrochromic devices due to its low cost, dual-band optical modulation and wide potential window complementary to other EC films. Akin to other electrochromic oxides, TiO2 suffers from the tradeoff between cycling stability and large optical modulation because of the ion trapping effect. In this paper, we find formation of beta-traps can be prevented through adjusting the applied duration time at high potential, thus beta-traps induced bleached state degradation in amorphous TiO2 films can be eradicated. More importantly, we show the formed beta-traps locate at the TiO2/electrolyte interface, and are in-dependent of the employed electrolyte systems. The TiO2 based full electrochromic devices confirm beta-traps can be suppressed in a full device fashion. This work paves the way to understand the electrochromic performance degradation for oxide films upon square wave cycling and lays the foundation for adaptation in EC devices.
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
National Natural Science Foundation of Guangdong[2022A1515010216] ; National Natural Science Foundation of China[52172294] ; "Shenzhen Science and Technology Innovation Commission[JCYJ20210324105402007] ; Guangdong Provincial Innovation and Entrepreneurship Project[2017ZT07C071] ; Guangdong Provincial Key Laboratory Program from the Department of Science and Technology of Guangdong Province[2021B1212040001] ; Shenzhen municipal government[Y01256130] ; Southern University of Science andTechnology[Y01256230]
WOS Research Area
Materials Science ; Physics
WOS Subject
Materials Science, Multidisciplinary ; Physics, Applied
WOS Accession No
WOS:000918354100001
Publisher
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/430726
DepartmentDepartment of Materials Science and Engineering
Affiliation
1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Guangdong Prov Key Lab Funct Oxide Mat & Devices, Shenzhen 518055, Peoples R China
First Author AffilicationDepartment of Materials Science and Engineering
Corresponding Author AffilicationDepartment of Materials Science and Engineering;  Southern University of Science and Technology
First Author's First AffilicationDepartment of Materials Science and Engineering
Recommended Citation
GB/T 7714
Shao, Peipei,Huang, Siyuan,Li, Bowen,et al. Eradicating beta-trap induced bleached-state degradation in amorphous TiO2 electrochromic films[J]. Materials Today Physics,2023,30.
APA
Shao, Peipei,Huang, Siyuan,Li, Bowen,Huang, Qingjiao,Zhang, Yiwen,&Wen, Rui-Tao.(2023).Eradicating beta-trap induced bleached-state degradation in amorphous TiO2 electrochromic films.Materials Today Physics,30.
MLA
Shao, Peipei,et al."Eradicating beta-trap induced bleached-state degradation in amorphous TiO2 electrochromic films".Materials Today Physics 30(2023).
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