We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Solvothermal Synthesis and Growth of Covalent Organic Framework Electrochromic Film with Triphenylamine Active Unit.
- Authors
Xiong, Shanxin; Zhang, Yukun; Zhang, Wei; Yang, Nana; Lv, Fengyan; Guo, Jingru; Cui, Xin; Fang, Ke; Chen, Min; Wang, Chenxu; Hua, Chunxia; Zhang, Runlan; Chu, Jia; Xu, Jianwei
- Abstract
Covalent organic frameworks (COFs) with reversible redox units and a conjugated molecular skeleton possess novel photoelectrochemical properties. In this work, tris(4-aminophenyl)amine and 4,4-biphenyldiformaldehyde were chosen to synthesize TABP-COF electrochromic film with triphenylamine (TPA) active unit by a solvothermal method in a Teflon-lined reactor. The growth process and reaction time optimization of the TABP-COF were studied. TABP-COF shows a self-assembly growth process from an array of nanosheets to nanospheres. Owing to the redox characteristics of TPA, the TABP-COF film exhibits reversible electrochromic behavior. With a solvothermal reaction time of 72 h, the TABP-COF-3 film exhibits the best electrochromic properties, including contrast of 0.483 and response time of 7.3 s/13.6 s. Considering the abundance of redox-active units that can be chosen, COF materials with different redox units and color changes can be designed for a variety of applications in the field of electrochromic materials.
- Subjects
TRIPHENYLAMINE; ELECTROCHROMIC substances; ARRAY processing; OXIDATION-reduction reaction
- Publication
Journal of Electronic Materials, 2024, Vol 53, Issue 5, p2656
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-024-10937-w