Additive Nanomanufacturing of Multifunctional Materials and Patterned Structures: A Novel Laser‐Based Dry Printing Process
Additive Nanomanufacturing of Multifunctional Materials and Patterned Structures: A Novel Laser‐Based Dry Printing Process
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DOI：
10.1002/admt.202001260
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发表时间：
2021-03
影响因子：
6.8
通讯作者：
Zabihollah Ahmadi;Seungjong Lee;R. Unocic;N. Shamsaei;M. Mahjouri‐Samani
中科院分区：
文献类型：
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作者：
Zabihollah Ahmadi;Seungjong Lee;R. Unocic;N. Shamsaei;M. Mahjouri‐Samani
功能材料、结构和器件在各种平台上的直接印刷，例如柔性到刚性基板，对于从电子到能源和感测到生物医学器件的应用是令人感兴趣的。当前的增材制造（AM）和印刷工艺要么受到功能材料的可用来源的限制，要么需要采用精确设计的油墨形式。在这里，一种新型的基于激光的增材纳米制造（ANM）系统能够原位和按需生成纳米颗粒，这些纳米颗粒可以作为纳米级构建块，用于在大气压和室温下真实的时间烧结和干法打印各种多功能材料和图案。展示了在各种刚性和柔性平台上打印不同功能材料的能力。该非平衡过程涉及靶的脉冲激光烧蚀和纯无定形纳米颗粒流的原位形成，所述纯无定形纳米颗粒流通过喷嘴被引导到基底表面上，在基底表面上它们被真实的实时烧结/结晶。此外，从纳米级到微米级的印刷材料的工艺-结构关系示出。这种新的ANM概念为在刚性和柔性基底上打印先进的功能材料和设备提供了机会，这些材料和设备可以在地球和太空中使用。
Direct printing of functional materials, structures, and devices on various platforms such as flexible to rigid substrates is of interest for applications ranging from electronics to energy and sensing to biomedical devices. Current additive manufacturing (AM) and printing processes are either limited by the available sources of functional materials or require to be in the form of precisely designed inks. Here, a novel laser‐based additive nanomanufacturing (ANM) system capable of in situ and on‐demand generations of nanoparticles that can serve as nanoscale building blocks for real‐time sintering and dry printing a variety of multifunctional materials and patterns at atmospheric pressure and room temperature is reported. The ability to print different functional materials on various rigid and flexible platforms is shown. This nonequilibrium process involves pulsed laser ablation of targets and in situ formation of pure amorphous nanoparticles’ stream that are guided through a nozzle onto the surface of the substrate, where they are sintered/crystallized in real‐time. Further, the process–structure relationship of the printed materials from nanoscale to microscale is shown. This new ANM concept opens up an opportunity for printing advanced functional materials and devices on rigid and flexible substrates that can be employed both on the earth and in space.