Design of twisted conjugated molecular systems towards stable multi-colored electrochromic polymers
Design of twisted conjugated molecular systems towards stable multi-colored electrochromic polymers
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稳定多色电致变色聚合物的扭曲共轭分子系统设计
DOI:
10.1016/j.dyepig.2020.108648
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发表时间:
2020-07
影响因子:
4.5
通讯作者:
Lu Baoyang
中科院分区:
文献类型:
--
作者:
Gu Hua;Xue Yu;Hu Faqi;Jian Nannan;Lin Kaiwen;Wu Tao;Liu Ximei;Xu Jingkun;Lu Baoyang
Promising advancement of conjugated polymers in electrochromic devices require to design high-performance electrochromic polymers with rich color conversion and long-term stability under cyclic electrical loads. Here we report a new strategy in developing multi-colored electrochromic polymers with good stability via twisted conjugated molecular engineering. A series of twisted hybrid precursors are synthesized by coupling ortho-alkylenedioxybenzenes with EDOT units, and their corresponding polymers are facilely electrosynthesized at relatively low polymerization potentials. The structure-property relationships of such ortho-alkylenedioxybenzene-EDOT hybrid precursors and polymers are systematically elucidated via DFT calculations, spectral, morphological, electrochemical and spectroelectrochemical analysis, etc. We demonstrate that the dihedral angle between ortho-alkylenedioxybenzenes and EDOT moieties can substantially affect the electrochemical and electrochromic properties of polymers. As the dihedral angle and electron cloud density increases, these hybrid polymers display distinct multiple color switching nature and good overall performance including high coloration efficiency (>200 cm2C−1), decent optical contrast (>45%), fast switching (<1 s), and excellent switching stability (96% of optical contrast after 3500 cycling) under cyclic electrical loads. With these findings, this work will provide novel insights for rational design of stable and highly efficient multi-colored electrochromic polymers.
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影响因子:
6.6
作者:
Lu, Baoyang;Zhang, Shimin;Zhao, Li;Li, Jie
通讯作者:
Li, Jie
影响因子:
4.6
作者:
Yu Xue;Zexu Xue;Wenwen Zhang;Wenna Zhang;Shuai Chen;Kaiwen Lin;Jingkun Xu
通讯作者:
Jingkun Xu
影响因子:
6
作者:
Houting Liu;Yuzhen Li;Jingkun Xu;Z. Le;M. Luo;Baoshan Wang;S. Pu;Liang Shen
通讯作者:
Houting Liu;Yuzhen Li;Jingkun Xu;Z. Le;M. Luo;Baoshan Wang;S. Pu;Liang Shen
DOI:
10.1002/pol.1967.150050501
发表时间:
1967-05
期刊:
Journal of Polymer Science Part A
影响因子:
--
作者:
P. Kovacic;J. Uchic;L. Hsu
通讯作者:
P. Kovacic;J. Uchic;L. Hsu
影响因子:
4.4
作者:
Daize Mo;Shijie Zhen;Jingkun Xu;Weiqiang Zhou;Baoyang Lu;Ge Zhang;Zhipeng Wang;Shimin Zhang;Zilan Feng
通讯作者:
Daize Mo;Shijie Zhen;Jingkun Xu;Weiqiang Zhou;Baoyang Lu;Ge Zhang;Zhipeng Wang;Shimin Zhang;Zilan Feng