Roll to roll processing of ultraconformable conducting polymer nanosheets
Roll to roll processing of ultraconformable conducting polymer nanosheets
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DOI：
10.1039/c5tc00750j
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发表时间：
2015-06
影响因子：
6.4
通讯作者：
Alessandra Zucca;K. Yamagishi;T. Fujie;S. Takeoka;V. Mattoli;F. Greco
中科院分区：
文献类型：
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作者：
Alessandra Zucca;K. Yamagishi;T. Fujie;S. Takeoka;V. Mattoli;F. Greco
能够作为独立薄膜站立或贴合表面的薄而柔顺的导电材料和电子设备与人机界面和不可感知的皮肤接触个人健康监测系统的开发相关。在这项工作中，开发了一种用于大面积制备导电聚合物纳米片的卷对卷（R2R）工艺，以期将该技术推向实际应用。 R2R 导电纳米片通过从临时基材上释放而获得独立式结构，然后以保形接触的方式转移到具有任意形状、曲率和表面形貌的任何目标表面（包括皮肤等生物组织）。通过使用丁二醇 (BG) 作为掺杂剂（经皮肤病学批准的成分），PEDOT:PSS 的特定高电导率配方已针对皮肤接触应用进行了优化。 R2R 纳米片作为难以察觉的表面肌电图电极进行了测试，能够记录肌肉电活动。目前的 R2R 工艺具有多种优势，例如在大面积卷筒上进行连续、高吞吐量的印刷、成本效益、执行速度以及工业就绪/大规模制造技术的使用。
Thin and compliant conductive materials and electronic devices that are able to stand as free-standing membranes or to conform to surfaces are relevant for the development of human-device interfaces and unperceivable skin-contact personal health monitoring systems. In this work, a roll-to-roll (R2R) process for the preparation of conductive polymer nanosheets on large areas has been developed in view to move such technology towards real-world applications. R2R conductive nanosheets are obtained as free-standing structures through release from a temporary substrate and then transferred in conformal contact with any target surface with arbitrary shape, curvature and surface topography (including biological tissue such as skin). A specific high-conductivity formulation of PEDOT:PSS has been optimized for skin-contact applications, by making use of butylene glycol (BG) as a dopant: a dermatologically approved ingredient. The R2R nanosheets were tested as unperceivable surface electromyography electrodes able to record muscle-electrical activity. The present R2R process has advantageous properties such as continuous, high throughput printing on large area rolls, cost-effectiveness, speed of execution and use of industry-ready/mass-scale manufacturing technology.