Elastic conducting polymer composites in thermoelectric modules
Elastic conducting polymer composites in thermoelectric modules
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DOI：
10.1038/s41467-020-15135-w
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发表时间：
2020-03-18
影响因子：
16.6
通讯作者：
Tybrandt, Klas
中科院分区：
文献类型：
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作者：
Kim, Nara;Lienemann, Samuel;Tybrandt, Klas
可穿戴设备的快速发展产生了对轻质、弹性和适形的能量收集和存储设备的需求。导电聚合物聚（3，4-乙撑二氧噻吩）在热电发电机方面表现出了巨大的前景，然而，有效能量收集所需的原始聚（3，4-乙撑二氧噻吩）的厚层太硬太脆，无法无缝集成到可穿戴设备中。已经开发了聚（3，4-亚乙基二氧噻吩）-弹性体复合材料以改善其机械性能，尽管迄今为止没有同时实现柔软性、高导电性和可拉伸性。在这里，我们报道了一种水相处理的聚（3，4-乙撑二氧噻吩）-聚丙烯酰胺-离子液体复合材料，其结合了高电导率（> 140 Scm（-1））与上级的拉伸性（>600%）、弹性和低杨氏模量（
The rapid growth of wearables has created a demand for lightweight, elastic and conformal energy harvesting and storage devices. The conducting polymer poly(3,4-ethylenedioxythiophene) has shown great promise for thermoelectric generators, however, the thick layers of pristine poly(3,4-ethylenedioxythiophene) required for effective energy harvesting are too hard and brittle for seamless integration into wearables. Poly(3,4-ethylenedioxythiophene)-elastomer composites have been developed to improve its mechanical properties, although so far without simultaneously achieving softness, high electrical conductivity, and stretchability. Here we report an aqueously processed poly(3,4-ethylenedioxythiophene)-polyurethane-ionic liquid composite, which combines high conductivity (>140Scm(-1)) with superior stretchability (>600%), elasticity, and low Young's modulus (