Manipulating Nanowire Assemblies toward Multicolor Transparent Electrochromic Device,Nano Letters

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Manipulating Nanowire Assemblies toward Multicolor Transparent Electrochromic Device
Nano Letters ( IF 9.6 ) Pub Date : 2021-10-22 , DOI: 10.1021/acs.nanolett.1c03061
Jin-Long Wang ₁ , Jian-Wei Liu ₁ , Si-Zhe Sheng ₁ , Zhen He ₁ , Jie Gao ₁ , Shu-Hong Yu ₁

Affiliation

Assembling various nanowires together, enabling the assemblies with tailored optical, electrical, and multifunctional properties, represents a promising technology for next generation multifunctional electronics. Here we demonstrate a novel multicolor electrochromic device by coassembling W₁₈O₄₉ and V₂O₅ nanowires using solution-based Langmuir–Blodgett technique. The transparent W₁₈O₄₉ nanowire film became orange with the increasing addition of V₂O₅ nanowires and the film underwent a dynamic color change (orange, green, and gray) on application of different electrochemical biases of 2, 0, and −0.5 V (vs Ag/AgCl). Both the transmittance and color of the device can be easily controlled by manipulating the layers of coassembled nanowires and the ratios between the two nanowires. On the basis of this approach, different patterns can be easily fabricated with the addition of corresponding masks, and the solid electrochromic device is assembled, suggesting its significant potentials in smart windows and multicolor electrochromic displays.

中文翻译：

操纵纳米线组件朝向多色透明电致变色装置

将各种纳米线组装在一起，使组装具有定制的光学、电学和多功能特性，代表了下一代多功能电子产品的有前途的技术。在这里，我们通过使用基于溶液的 Langmuir-Blodgett 技术共组装 W ₁₈ O ₄₉和 V ₂ O ₅纳米线来展示一种新型多色电致变色装置。随着V ₂ O ₅添加量的增加，透明的W ₁₈ O ₄₉纳米线薄膜变成橙色纳米线和薄膜在应用 2、0 和 -0.5 V（相对于 Ag/AgCl）的不同电化学偏置时发生动态颜色变化（橙色、绿色和灰色）。通过操纵共组装的纳米线层和两条纳米线之间的比率，可以轻松控制器件的透射率和颜色。在这种方法的基础上，可以通过添加相应的掩模轻松制作不同的图案，并组装固体电致变色器件，表明其在智能窗户和多色电致变色显示器方面具有巨大潜力。

更新日期：2021-11-10

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