Oriented Two-Dimensional Covalent Organic Framework Films for Near-Infrared Electrochromic Application

被引：164
|
作者：
Hao, Qing [1 ,3 ]
Li, Zhi-Juan [2 ,3 ]
Lu, Cheng [1 ,3 ]
Sun, Bing [1 ,4 ]
Zhong, Yu-Wu [2 ,3 ]
Wan, Li-Jun [1 ,3 ]
Wang, Dong [1 ,3 ]
机构：
[1] Chinese Acad Sci, Key Lab Mol Nanostruct & Nanotechnol, CAS Res Educ Ctr Excellence Mol Sci, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Res Educ Ctr Excellence Mol Sci, Key Lab Photochem,Inst Chem, Beijing 100190, Peoples R China
[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[4] China Univ Geosci Beijing, Sch Sci, Beijing 100083, Peoples R China
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2019年 / 141卷 / 50期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
POLYMERS; TRIPHENYLAMINE; ACCEPTOR; GREEN; RED; EFFICIENT; ARAMIDS; CARBON; SITES; BLUE;
D O I：
10.1021/jacs.9b09956
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The electrochromic property and device construction of a triphenylamine-based oriented two-dimensional covalent organic framework (2D COF) film on indium tin oxide (ITO) coated glass was reported. The characterization of the 2D COF3PA-TT film revealed that the film was uniform, with good crystallinity, and oriented with its 2D plane parallel to the substrate. For the first time, the electrochromic properties of 2D COF3PA-TT film were studied. 2D COF3PA-TT film on ITO exhibited reversible color transition between deep red and dark brown during redox process. Spectroelectrochemical experiments revealed color changes in the absorption spectra of 2D COF3PA-TT film in the visible and near-infrared regions and showed the characteristics of intervalence charge transfer. The quasi-solid-state electrochromic device was prepared based on the COF3PA-TT film, and it exhibited moderate performance and stability in the near-infrared region.
引用
收藏
页码：19831 / 19838
页数：8
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