Superhydrophobic-Substrate-Assisted Construction of Free-Standing Microcavity-Patterned Conducting Polymer Films.
Superhydrophobic-Substrate-Assisted Construction of Free-Standing Microcavity-Patterned Conducting Polymer Films.
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DOI：
10.1002/advs.202100949
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发表时间：
2021-09
期刊：
影响因子：
--
通讯作者：
Jiang L
中科院分区：
文献类型：
--
作者：
Chen Y;Zhu Z;Jiang X;Jiang L
图案化导电聚合物薄膜具有独特的结构，在驱动、水净化、传感、生物电子等领域具有广阔的应用前景。但由于现有施工方法的局限性，阻碍了它们的实际应用。本文提出了一种利用超疏水衬底辅助构建微米级自支撑三维微腔图案化导电聚合物薄膜的方法。在微柱结构的衬底上，通过沿固/液/气三相界面的电化学聚合，获得了易剥离和无损的转移性能。系统地研究了衬底的润湿性和几何参数对McPCPF结构的影响，以及不同聚合时间下沿三相界面外延生长的演化。使用乙醇可以很容易地将McPCPF从超疏水表面剥离，因为它的粘附性很弱，并且利用毛细管的优势非破坏性地转移到各种衬底上。此外，还展示了灵敏的光驱动的McPCPF在有机液体表面的运动。最后，提出了一种构建自支撑三维微结构图案化导电聚合物薄膜的简便策略，提高了薄膜的生产率和在不同领域的适用性，扩大了超湿界面的应用范围。通过沿三相界面的电化学聚合，实现了超疏水衬底辅助构建具有微米级分辨率、易剥离和无损传输性能的自支撑微腔图案化导电聚合物薄膜。系统地研究了微柱结构衬底的润湿性和几何参数对McPCPF结构的影响，并对其外延生长进行了探索和光驱动运动的演示。
Patterned conducting polymer films with unique structures have promising prospects for application in various fields, such as actuation, water purification, sensing, and bioelectronics. However, their practical application is hindered because of the limitations of existing construction methods. Herein, a strategy is proposed for the superhydrophobic‐substrate‐assisted construction of free‐standing 3D microcavity‐patterned conducting polymer films (McPCPFs) at micrometer resolution. Easy‐peeling and nondestructive transfer properties are achieved through electrochemical polymerization along the solid/liquid/gas triphase interface on micropillar‐structured substrates. The effects of the wettability and geometrical parameters of the substrates on the construction of McPCPFs are systematically investigated in addition to the evolution of the epitaxial growth along the triphase interface at different polymerization times. The McPCPFs can be easily peeled from superhydrophobic surfaces using ethanol because of weak adhesion and nondestructively transferred to various substrates taking advantage of the capillarity. Furthermore, sensitive light‐driven McPCPF locomotion on organic liquid surfaces is demonstrated. Ultimately, a facile strategy for the construction of free‐standing 3D microstructure‐patterned conducting polymer films is proposed, which can improve productivity and applicability of the films in different fields and expand the application scope of superwettable interfaces. Superhydrophobic‐substrate‐assisted construction of free‐standing microcavity‐patterned conducting polymer films (McPCPFs) at micrometer resolution with easy‐peeling and nondestructive transfer properties is achieved through electrochemical polymerization along the triphase interface. The effects of the wettability and geometrical parameters of micropillar‐structured substrates on the construction of McPCPFs are systematically investigated, followed by an exploration of the epitaxial growth and a demonstration in light‐driven locomotion.
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影响因子：
10.8
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