Abstract
In this paper, we report an electrochromic device (ECD) using novel silica/ poly(3,4-ethylenedioxythiophene) (SiO2/PEDOT) core/shell nanoparticle film as electrode. The SiO2/PEDOT core/shell nanocomposite film was prepared by a facile in situ chemical oxidative polymerization method. Compared with the pure PEDOT film, the SiO2/PEDOT nanocomposite film exhibits shorter response time (1.8 s for bleaching and 1.4 s for coloring), higher coloration efficiency (247.6 cm2/C) and better cycling stability (sustaining 81.8% of its initial optical contrast after switching 5000 s). The improved electrochromic performances are attributed to the core/shell nanostructures, which can make ion diffusion easier and provide larger surface area for charge-transfer reactions. Moreover, the ECD based on SiO2/PEDOT film also exhibits good electrochromic performances and has potential applications in smart windows, automobile anti-glare rearview mirrors and energy saving displays.
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12 October 2020
In the original version of this article, Fig.��2 was inadvertently published with errors. The original version of Fig.��2 has been corrected by publishing this correction article. The correct results of Fig.��2 are shown as follows.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (NSFC) (No. 21876119, 51503134 and 51721091), Sichuan Province Science and Technology Foundation (No. 2017GZ0429) and State Key Laboratory of Polymer Materials Engineering (No. SKLPME 2017-3-02). We would like to thank the analytical & Testing center of Sichuan university and we would be grateful to Hui wang for her help of SEM images.
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Zhang, S., Chen, S., Yang, F. et al. A facile preparation of SiO2/PEDOT core/shell nanoparticle composite film for electrochromic device. J Mater Sci: Mater Electron 30, 3994–4005 (2019). https://doi.org/10.1007/s10854-019-00686-6
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DOI: https://doi.org/10.1007/s10854-019-00686-6