Conformal electrodeposition of ultrathin polymeric films with tunable properties from dual-functional monomers
Conformal electrodeposition of ultrathin polymeric films with tunable properties from dual-functional monomers
复制标题
双功能单体的性能可调的超薄聚合物薄膜的保形电沉积
DOI：
10.1039/d2me00246a
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发表时间：
2023
影响因子：
3.6
通讯作者：
Werner, Jörg G.
中科院分区：
文献类型：
--
作者：
Wang, Wenlu;Zheng, Zhaoyi;Resing, Anton B.;Brown, Keith A.;Werner, Jörg G.
功能薄膜和中间相在现代技术中无处不在，往往决定着器件的性能和寿命。然而，现有的涂层策略与新兴的介观3D结构和多孔材料不兼容，并且无法在其巨大而复杂的内部3D表面上均匀地应用功能薄膜。在这份报告中，我们介绍了一种利用定制设计的双功能单体获得共形聚合物薄膜的方法，该单体既具有自限电沉积能力，又具有在不同分子基序中感兴趣的功能。我们用单体三甘醇-二苯酚举例说明了这种方法，并演示了用超薄的锂离子渗透膜完全覆盖3D介观电池电极。我们对加工-结构-性能关系的全面研究使我们能够对保形厚度(7-80 nm)、分子渗透性和电子性能进行定制控制。这种方法的模块化和可调谐性使其成为在任意三维结构上沉积功能聚合物薄膜的一种有前途的候选方法。
Functional thin films and interphases are omnipresent in modern technology and often determine the performance and life-time of devices. However, existing coating strategies are incompatible with emerging mesoscaled 3D architected and porous materials, and fail to uniformly apply functional thin films on their large and complex interior 3D surface. In this report, we introduce an approach for obtaining conformal polymeric thin films using custom-designed dual-functional monomers possessing both self-limiting electrodeposition capability and the functionality of interest in separate molecular motifs. We exemplify this approach with the monomer triethylene glycol-diphenol and demonstrate the full coating of a 3D mesoscaled battery electrode with an ultrathin lithium-ion permeable film. Our comprehensive study of the processing–structure–property relationships enables the tailorable control over the conformal thickness (7–80 nm), molecular permeability, and electronic properties. The modularity and tunability of this approach make it a promising candidate for functional polymer film deposition on arbitrary 3D structures.