期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 240, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.solmat.2022.111700
关键词
Liquid; liquid interface; Crosslink; Loose structure; Electrochromic; Supercapacitor
资金
- National Natural Science Foundation of China [52073257, 52103232]
- Nat-ural Science Foundation of Zhejiang Province [LY19E030006, LQ19E030016]
Interfacial crosslinking is a useful method for preparing films with desired structures. In this study, a crosslinked film (Rc-mProdot) with loose structure was successfully obtained from a linear polymer (mProdot) via liquid/liquid interfacial crosslinking. The Rc-mProdot film exhibited improved electrochromic and capacitance properties compared to the spin-coated mProdot polymer film.
Interfacial crosslinking is a useful and unique method for preparing films with desired structures. Here, a crosslinked structure film (Rc-mProdot) is obtained from the linear polymer (mProdot) with cross-linkable functional side-chains via the liquid/liquid interfacial crosslinking. Transmission phenomenon and Tyndall effect reflected the assembling progress of Rc-mProdot film. FT-IR and SEM data prove the formation of the desired cross-linked polymer film with loose structure precisely. Significantly, the desirable Rc-mProdot film not only retains the original color and similar electrochemical behaviors to these of the spin-coated mProdot polymer film, but also exhibits improved electrochromic and capacitance properties including a faster electrochromic discoloring time (0.26 s), larger capacitance (increasing by 60% than Rc-mProdot film) and a better charge-discharge stability (retaining 79.1% after 600 cycles). This work provides a simple and efficient approach to liquid/liquid interfacial Schiff-base reaction to construct conjugated polymer films with loose structure towards improving electrochromic and supercapacitor performance and applications.
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