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A transparent 3D electrode with criss-crossed nanofibers network for solid electrochromic device

Abstract

Low response rate has always been a major obstacle for use of electrochromic materials in electronic display. An ideal 3D electrode capable of increasing response rate and decreasing the diffusion distance of charge for solid electrochromic device had been proposed and longawaited. Here, we are glad to report a network-like transparent 3D electrode consisting of criss-crossed indium tin oxide (ITO) nanofibers fabricated by a rapid and facile electrospinning. In such transparent 3D electrode, nano-porous fibers-network of ITO served as various criss-crossed electron channels to transmit both electrons and ions from their networks to fully surrounded electrochromic materials. Compared with common 2D fluorine tin oxide (FTO) electrode, the response time of this new electrode (FTO-3D) is reduced dramatically to less than 1/4 (1/30 in milliseconds scales) in this solid dual-mode device, wherein BQ/Flu system is used as the electrochromic material based on electrobase theory. And, the conductivity of such FTO-3D device was above 10 times better than normal FTO device. Furthermore, such dual-mode electrochromic FTO-3D device exhibited excellent reversibility with nearly none-degradation detectable after 2100 cycles.

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Publication details

The article was received on 26 Jul 2017, accepted on 02 Oct 2017 and first published on 02 Oct 2017


Article type: Paper
DOI: 10.1039/C7TC03356G
Citation: J. Mater. Chem. C, 2017, Accepted Manuscript
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    A transparent 3D electrode with criss-crossed nanofibers network for solid electrochromic device

    G. Yang, D. Guan, N. Wang, W. Zhang, C. Gu, Y. Zhang, M. Li and S. X. X. Zhang, J. Mater. Chem. C, 2017, Accepted Manuscript , DOI: 10.1039/C7TC03356G

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