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首页> 外文期刊>Advanced Functional Materials >Reversible Coloration Enhanced by Electrochemical Deposition of an Ultrathin Zinc Layer onto an Anodic Nanoporous Alumina Layer
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Reversible Coloration Enhanced by Electrochemical Deposition of an Ultrathin Zinc Layer onto an Anodic Nanoporous Alumina Layer

机译：通过将超薄锌层电化学沉积到阳极纳米多孔氧化铝层上来增强可逆着色

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摘要

A productive method is introduced to realize large area color electronic paper (e-paper) with high UV resistance, heat resistance, and good significant bending properties using a color change triggered by reversible electronic change in the device structure. Reversible coloration and decoloration triggered by electrochemical deposition and desorption, respectively, of an ultra-thin zinc (Zn) layer on a thin transparent conductive layer coated on anodic nanoporous alumina has been developed. The deposition of the ultra-thin Zn layer triggers the formation of destructive interference, which leads to coloration. Yellow, magenta, and cyan colors were obtained in the colored state by increasing the NP-AI_2O_3 layer thickness, based on Bragg diffraction theory. Reflectance of more than 70% and contrast values of more than 7 were obtained, which are nearly equivalent to those of previous e-papers. The color images in these devices also showed high UV resistance, heat resistance, and repeated significant bending endurance. The devices can be fabricated with large areas using low-cost manufacturing processes such as anodic oxidation, and use abundantly available materials. Our proposed device provides low-cost and flexible large area color e-paper for outdoor use.
机译：引入了一种生产方法，该方法利用器件结构中可逆电子变化触发的颜色变化来实现具有高抗紫外线性，耐热性和良好的显着弯曲特性的大面积彩色电子纸（电子纸）。已经开发了分别通过涂覆在阳极纳米多孔氧化铝上的薄透明导电层上的超薄锌（Zn）层的电化学沉积和脱附而引发的可逆着色和脱色。 Zn超薄层的沉积会触发相消干涉的形成，从而导致着色。根据布拉格衍射理论，通过增加NP-AI_2O_3层的厚度，可以在着色状态下获得黄色，品红色和青色。获得了超过70％的反射率和超过7的对比度值，几乎与以前的电子纸相当。这些设备中的彩色图像还显示出较高的抗紫外线性，耐热性和反复的明显弯曲耐久性。可以使用低成本制造工艺（例如阳极氧化）大面积制造器件，并使用大量可用的材料。我们提出的设备可为户外使用提供低成本和灵活的大面积彩色电子纸。

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  • 来源
    《Advanced Functional Materials》 |2012年第20期|p.4195-4201|共7页
  • 作者

    Shuzo Hirata; Toshiro Tsuji; Yoshimine Kato; Chihaya Adachi;

  • 作者单位

    Center for Organic Photonics and Electronics Research (OPERA) Kyushu University 744 Motooka, Nishi, Fukuoka 819-0395 Japan;

    Department of Automotive Science Kyushu University 744 Motooka, Nishi, Fukuoka 819-0395 Japan;

    Department of Automotive Science Kyushu University 744 Motooka, Nishi, Fukuoka 819-0395 Japan;

    Center for Organic Photonics and Electronics Research (OPERA) Kyushu University 744 Motooka, Nishi, Fukuoka 819-0395 Japan;

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