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Parallel, Multi-Material Electrohydrodynamic 3D Nanoprinting.
Small ( IF 13.0 ) Pub Date : 2020-02-26 , DOI: 10.1002/smll.201906402 Mojun Chen 1 , Heekwon Lee 1 , Jihyuk Yang 1 , Zhaoyi Xu 1 , Nan Huang 1 , Barbara Pui Chan 1 , Ji Tae Kim 1
Small ( IF 13.0 ) Pub Date : 2020-02-26 , DOI: 10.1002/smll.201906402 Mojun Chen 1 , Heekwon Lee 1 , Jihyuk Yang 1 , Zhaoyi Xu 1 , Nan Huang 1 , Barbara Pui Chan 1 , Ji Tae Kim 1
Affiliation
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Direct mass-transfer via liquid nanodroplets is one of the most powerful approaches for additive micro/nanofabrication. Electrohydrodynamic (EHD) dispensing has made the delivery of nanosized droplets containing diverse materials a practical reality; however, in its serial form it has insufficient throughput for large-area processing. Here, a parallel, nanoscale EHD method is developed that offers both improved productivity and material diversity in 3D nanoprinting. The method exploits a double-barreled glass nanopipette filled with material inks to parallelize nanodripping ejections, enabling a dual 3D nanoprinting process. It is discovered that an unusual electric field distribution created by cross talk of neighboring pipette apertures can be used to steer the microscopic ejection paths of the ink at will, enabling on-demand control over shape, placement, and material mixing in 3D printed nanostructures. After thorough characterizations of the printing conditions, the parallel fabrication of nanomeshes and nanowalls of silver, CdSe/ZnS quantum dots, and their composites, with programmed designs is demonstrated. This method is expected to advance productivity in the heterogeneous integration of functional 3D nanodevices in a facile manner.
中文翻译：
并行，多材料电液动力学3D纳米打印。
通过液体纳米液滴直接传质是添加微/纳米加工的最有效方法之一。电液动力学（EHD）分配已使包含多种材料的纳米级液滴的输送成为现实。但是，以串行形式，它的吞吐量不足以进行大面积处理。在此，开发了一种并行的纳米级EHD方法，该方法可提高3D纳米打印的生产率和材料多样性。该方法利用填充有材料墨水的双桶玻璃纳米移液器来并行化纳米滴喷射，从而实现双重3D纳米打印过程。发现通过相邻移液器孔的串扰产生的异常电场分布可用于随意控制墨水的微观喷射路径，从而可以按需控制形状，3D打印纳米结构中的放置和材料混合。在对印刷条件进行了全面的表征之后，通过编程设计，展示了银，CdSe / ZnS量子点及其复合物的纳米网格和纳米壁的并行制造。期望该方法以方便的方式提高功能性3D纳米器件的异构集成中的生产率。
更新日期：2020-04-03
中文翻译：
并行，多材料电液动力学3D纳米打印。
通过液体纳米液滴直接传质是添加微/纳米加工的最有效方法之一。电液动力学（EHD）分配已使包含多种材料的纳米级液滴的输送成为现实。但是，以串行形式，它的吞吐量不足以进行大面积处理。在此，开发了一种并行的纳米级EHD方法，该方法可提高3D纳米打印的生产率和材料多样性。该方法利用填充有材料墨水的双桶玻璃纳米移液器来并行化纳米滴喷射，从而实现双重3D纳米打印过程。发现通过相邻移液器孔的串扰产生的异常电场分布可用于随意控制墨水的微观喷射路径，从而可以按需控制形状，3D打印纳米结构中的放置和材料混合。在对印刷条件进行了全面的表征之后，通过编程设计，展示了银，CdSe / ZnS量子点及其复合物的纳米网格和纳米壁的并行制造。期望该方法以方便的方式提高功能性3D纳米器件的异构集成中的生产率。
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