用预漂白普鲁士蓝电极改进离子固体/紫外光杂化电致变色装置

IF 3.8 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IET Nanodielectrics Pub Date : 2021-03-25 DOI:10.1049/nde2.12015
Anjali Chaudhary, Devesh K. Pathak, Manushree Tanwar, Suchita Kandpal, Tanushree Ghosh, Chanchal Rani, Rajesh Kumar
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引用次数: 2

摘要

作者演示了如何一个简单的步骤加载电致变色活性普鲁士蓝(PB;具有Li+离子的离子固体电极可以帮助实现更高效的基于紫外光的固态混合电致变色器件。为了实现这一目标,制造了两种不同的装置,带和不带Li+离子负载的PB电极。我们比较了这两种器件的电流电压响应、偏置依赖的光调制和相应的颜色切换,以确定Li+离子在两种器件偏置诱导氧化还原介导的颜色切换过程中所涉及的电荷传输和电荷平衡中的作用。与含有合成PB电极的器件相比,含有Li+的PB电极器件具有两倍(40%)的颜色对比度值(20%),快速响应切换(1.3 s),出色的稳定性(8400 s)和更好的功率效率。提出了一种机制来解释Li+离子的作用,后来用偏置相关的原位拉曼光谱证据证实了这一机制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Improved ionic solid/viologen hybrid electrochromic device using pre-bleached Prussian-blue electrode

The authors demonstrate how a simple step of loading an electrochromically active Prussian blue (PB; an ionic solid) electrode with Li+ ions can help in achieving a more efficient viologen based solid state hybrid electrochromic device. To accomplish this, two different devices, with and without Li+ ion loaded PB electrodes, have been fabricated. These devices have been compared in terms of their current-voltage response, bias dependent optical modulation and corresponding colour switching to establish the role of Li+ ion in charge transport and charge balancing involved during bias induced redox mediated colour switching of the two devices. The Li+ containing PB electrode device exhibits a superior performance with twice (40%) the value of colour contrast (20%), quick response switching (1.3 s), excellent stability (8400 s) and better power efficiency as compared to the device containing as-synthesised PB electrode. A mechanism has been proposed to explain the role of the Li+ ion which is later substantiated using bias-dependent in situ Raman spectroscopic evidences.

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来源期刊
IET Nanodielectrics
IET Nanodielectrics Materials Science-Materials Chemistry
CiteScore
5.60
自引率
3.70%
发文量
7
审稿时长
21 weeks
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