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

页码：19831 / 19838

页数：8

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