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首页> 外文期刊>Electrochimica Acta >Ion diffusion and optical switching performance of 3D ordered nanostructured polyaniline films for advanced electrochemical/electrochromic devices
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Ion diffusion and optical switching performance of 3D ordered nanostructured polyaniline films for advanced electrochemical/electrochromic devices

机译：用于高级电化学/电致变色器件的3D有序纳米结构聚苯胺薄膜的离子扩散和光开关性能

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摘要

Nanostructured polyaniline (PANI) has the ability of fast and reversible acid/base doping/dedoping, multicolor changes and electron-donating/accepting using surface or near-surface reactions. Here we report PANI films with 3D ordered nanostructures through template-assisted electrodeposition method and aim to study the ion diffusion behavior as well as optical switching properties. It is found the ion diffusion coefficient is greatly increased because of the chain and crystalline structural modulation of deposited polyaniline arising from the template confinement effect. The ion diffusion reversibility and ion storage of 3D ordered macroporous (3DOM) PANI is highly improved due to the interconnected porous structure, which benefits for the fast penetration of ions. The optical switching properties of 3DOM PANI are also highly enhanced especially in the infrared region mainly because of the extended optical transmission path associated with the interconnected porous structure. The outstanding ion/electron doping/dedoping performance and better interaction with lights shown here render the ordered porous polyaniline a promising candidate as high-density electrochemical/electrochromic energy materials.
机译：纳米结构聚苯胺（PANI）具有快速和可逆的酸/碱掺杂/去掺杂，多色变化和使用表面或近表面反应进行电子给体/接受的能力。在这里，我们通过模板辅助电沉积方法报告具有3D有序纳米结构的PANI膜，旨在研究离子扩散行为以及光学开关特性。发现由于模板限制效应引起的沉积聚苯胺的链和晶体结构调节，离子扩散系数大大增加。由于互连的多孔结构，3D有序大孔（3DOM）PANI的离子扩散可逆性和离子存储得到了极大的改善，这有利于离子的快速渗透。 3DOM PANI的光学开关特性也得到了极大的增强，特别是在红外区域，这主要是因为与互连的多孔结构相关的光传输路径延长了。出色的离子/电子掺杂/去掺杂性能以及与此处所示光的更好交互性，使得有序多孔聚苯胺成为高密度电化学/电致变色能源材料的有希望的候选者。

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