3D Laser Nanoprinting of Functional Materials |
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Authors: | Shao-Feng Liu Zheng-Wei Hou Linhan Lin Zhengcao Li Hong-Bo Sun |
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Affiliation: | 1. State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Haidian, Beijing, 100084 P. R. China;2. Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Haidian, Beijing, 100084 P. R. China |
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Abstract: | 3D laser nanoprinting represents a revolutionary manufacturing approach as it allows maskless fabrication of 3D nanostructures at a resolution beyond the optical diffraction limit. Specifically, it endows the printed structures novel physical, chemical, or mechanical properties not observed at macroscopic scale. However, 3D laser nanoprinting typically relies on the photopolymerization process, indicating its limitation on the printable materials and functionalities. The capability to print diverse functional materials beyond polymer will enable a lot of new device applications in nanophotonics, microelectronics, and so on. One of the strategies is to use the 3D-printed polymer structures as skeletons for functional material deposition, while another is to mix the functional components with the photocurable molecules and print the nanocomposites. More recently, several laser nanoprinting techniques beyond photopolymerization are also developed. In this review, the cutting-edge technical innovation is summarized and a couple of examples are highlighted showing exciting applications of the printed structures in magnetic microrobots, photonics, and optoelectronics. Finally, the vision for existing challenges and future development in this field is shared. |
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Keywords: | 3D printing functionality nanomaterials nanophotonics two-photon polymerization |
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