Chinese Academy of Sciences printed three-dimensional complex micro-nano structure and functional device research progress
June 25 09:14:11, 2023
[China Instrument Network Instrument R&D] With the development of information technology, the integration level and production process of traditional integrated circuits are facing huge challenges. In recent years, attention has been paid to the assembly of three-dimensional micro/nanostructures. Among them, three-dimensional structures are crucial for the fabrication of three-dimensional circuits and optoelectronic devices. However, the traditional assembly method is difficult to realize a self-supporting three-dimensional suspension structure, and the applicable materials are very limited. Therefore, it is of great significance for the development of new optoelectronic devices to study the simple and universal three-dimensional microstructure method.
Micro-nano three-dimensional circuit and multicolor display device
Researcher Song Yanlin, researcher of the Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, used green nano-imprint technology to develop nano-materials such as fine patterned assembly, printed flexible sensors, optical devices, transparent conductive films, and optimal micro- and nano-serial line applications. A series of extensive and in-depth studies.
Based on the above research, the researchers use droplet-manipulated micro-nano structures as the starting point of the study, using the template to induce spontaneous shrinkage of the droplets in the three-dimensional space, and realize the rapid assembly and assembly of single or multi-material three-dimensional micro/nano structures. The process of liquid spontaneous shrinkage molding follows the most stable state of thermodynamics and meets the mathematical optimal connection in the connection mode, so that the nanomaterial in the liquid can be formed into an optimized structure through one-step assembly. Stereo micro-nano circuits based on silver nano-particles show potential applications in stereoscopic integrated circuits; a three-dimensional micro-nano structure based on the co-assembly of two quantum dots can still achieve good multi-color display at intervals less than 3 μm. This kind of three-dimensional micro-nano structure assembled by droplet spontaneous formation provides a new idea for the development of new stereoscopic optoelectronic devices.
Recently, related research results were published as a cover story on Advanced Materials. The research work was supported by the National Natural Science Foundation of China, the Ministry of Science and Technology and the China Academy of Sciences.
(Headline: Chemical Industry Advances in the Study of Printed 3D Complex Micro/Nano Structures and Functional Devices)
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