Mesostructured Electroactive Thin Films Through Layer-by-Layer Assembly of Redox Surfactants and Polyelectrolytes.,ChemPlusChem

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Mesostructured Electroactive Thin Films Through Layer-by-Layer Assembly of Redox Surfactants and Polyelectrolytes.
ChemPlusChem ( IF 3.0 ) Pub Date : 2020-05-16 , DOI: 10.1002/cplu.202000358
Esteban Piccinini ₁ , Marcelo Ceolín ₁ , Fernando Battaglini ₂ , Omar Azzaroni ₁

Affiliation

Electroactive thin films are an important element in the devices devoted to energy conversion, actuators, and molecular electronics, among others. Their build‐up by the layer‐by‐layer technique is an attractive choice since a fine control over the thickness and composition can be achieved. However, most of the assemblies described in the literature show a lack of internal order, and their thicknesses change upon oxidation‐state alterations. In this work, we describe the formation of layer‐by‐layer assemblies of redox surfactants and polyelectrolytes that leads to the construction of mesoscale organized electroactive films. In contrast to thin films prepared with traditional redox polymers, here, the redox surfactant does not only allow the control of the film meso‐organization (from 2D hexagonal to circular hexagonal phases) but it also allows the control of the number and position of the redox centers. Finally, these films show high stability and a negligible structural deformation under redox‐state changes.

中文翻译：

通过氧化还原表面活性剂和聚电解质的逐层组装形成介电结构的电活性薄膜。

电活性薄膜是专用于能量转换，致动器和分子电子器件等设备中的重要元素。由于可以对厚度和成分进行精细控制，因此通过逐层技术进行堆积是一个有吸引力的选择。但是，文献中描述的大多数组件都缺乏内部秩序，其厚度会随着氧化态的变化而变化。在这项工作中，我们描述了氧化还原表面活性剂和聚电解质的逐层组装的形成，这导致了中尺度组织的电活性膜的构建。与传统的氧化还原聚合物制备的薄膜相比，氧化还原表面活性剂不仅可以控制薄膜的介观结构（从二维六方相到圆形六方相），而且还可以控制氧化还原中心的数量和位置。最后，这些膜在氧化还原状态变化下表现出高稳定性和微不足道的结构变形。

更新日期：2020-05-16

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