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Hydroplastic Micromolding of 2D Sheets
Advanced Materials ( IF 27.4 ) Pub Date : 2021-05-14 , DOI: 10.1002/adma.202008116 Fan Guo 1, 2 , Yue Wang 1 , Yanqiu Jiang 2 , Zeshen Li 2 , Zhen Xu 2 , Xiaoli Zhao 3 , Tingbiao Guo 4 , Wei Jiang 1 , Chao Gao 2, 5
Advanced Materials ( IF 27.4 ) Pub Date : 2021-05-14 , DOI: 10.1002/adma.202008116 Fan Guo 1, 2 , Yue Wang 1 , Yanqiu Jiang 2 , Zeshen Li 2 , Zhen Xu 2 , Xiaoli Zhao 3 , Tingbiao Guo 4 , Wei Jiang 1 , Chao Gao 2, 5
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Processing 2D sheets into desired structures with high precision is of great importance for fabrication and application of their assemblies. Solution processing of 2D sheets from dilute dispersions is a commonly used method but offers limited control over feature size precision owing to the extreme volume shrinkage. Plastic processing from the solid state is therefore a preferable approach to achieve high precision. However, plastic processing is intrinsically hampered by strong interlayer interactions of the 2D sheet solids. Here, a hydroplastic molding method to shape layered solids of 2D sheets with micrometer-scale precision under ambient conditions is reported. The dried 2D layered solids are plasticized by intercalated solvents, affording plastic near-solid compounds that enable local plastic deformation. Such an intercalated solvent-induced hydroplasticity is found in a broad family of 2D materials, for example graphene, MoS2, and MXene. The hydroplastic molding enables fabrication of complex spatial structures (knurling, origami) and microimprinted tubular structures down to diameters of 390 nm with good fidelity. The method enhances the structural accuracy and enriches the structural diversity of 2D macroassemblies, thus providing a feasible strategy to tune their electrical, optical, and other functional properties.
中文翻译：
二维片材的水塑性微成型
以高精度将 2D 板材加工成所需的结构对于其组件的制造和应用非常重要。从稀分散体溶液处理 2D 片材是一种常用的方法，但由于极端的体积收缩，对特征尺寸精度的控制有限。因此，从固态进行塑性加工是实现高精度的首选方法。然而，塑料加工本质上受到二维片材固体层间强相互作用的阻碍。在这里，报道了一种在环境条件下以微米级精度成型二维片材层状固体的水塑性成型方法。干燥的二维层状固体通过插入的溶剂塑化，提供可塑性近固体的化合物，使局部塑性变形。2和 MXene。水塑性成型能够以良好的保真度制造直径为 390 nm 的复杂空间结构（滚花、折纸）和微压印管状结构。该方法提高了结构精度并丰富了二维宏组件的结构多样性，从而为调整其电学、光学和其他功能特性提供了可行的策略。
更新日期：2021-06-22
中文翻译：
二维片材的水塑性微成型
以高精度将 2D 板材加工成所需的结构对于其组件的制造和应用非常重要。从稀分散体溶液处理 2D 片材是一种常用的方法，但由于极端的体积收缩，对特征尺寸精度的控制有限。因此，从固态进行塑性加工是实现高精度的首选方法。然而，塑料加工本质上受到二维片材固体层间强相互作用的阻碍。在这里，报道了一种在环境条件下以微米级精度成型二维片材层状固体的水塑性成型方法。干燥的二维层状固体通过插入的溶剂塑化，提供可塑性近固体的化合物，使局部塑性变形。2和 MXene。水塑性成型能够以良好的保真度制造直径为 390 nm 的复杂空间结构（滚花、折纸）和微压印管状结构。该方法提高了结构精度并丰富了二维宏组件的结构多样性，从而为调整其电学、光学和其他功能特性提供了可行的策略。
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