文献类型：期刊文献

英文题名：3D Printing of Liquid Metals: Recent Advancements and Challenges

作者：Zou, Zhongfei Chen, Yuewei Yuan, Sen Luo, Nan Li, Jiachun He, Yong

第一作者：邹中妃

通信作者：Li, JC[1];He, Y[2];He, Y[3]

机构：[1]Guizhou Inst Technol, Sch Mech Engn, Guiyang 550003, Peoples R China;[2]Guizhou Univ, Sch Mech Engn, Guiyang 550025, Peoples R China;[3]Zhejiang Univ, Sch Mech Engn, Hangzhou 310027, Peoples R China;[4]Zhejiang Univ, State Key Lab Fluid Power & Mechatron Syst, Hangzhou 310027, Peoples R China

第一机构：贵州理工学院机械工程学院

通信机构：corresponding author), Guizhou Univ, Sch Mech Engn, Guiyang 550025, Peoples R China;corresponding author), Zhejiang Univ, Sch Mech Engn, Hangzhou 310027, Peoples R China;corresponding author), Zhejiang Univ, State Key Lab Fluid Power & Mechatron Syst, Hangzhou 310027, Peoples R China.

年份：0

外文期刊名：ADVANCED FUNCTIONAL MATERIALS

收录：;EI(收录号：20230113331925);Scopus(收录号：2-s2.0-85145269494);WOS:【SCI-EXPANDED(收录号:WOS:000903716400001)】；

基金：Acknowledgements This work was sponsored by the National Natural Science Foundation of China (No. U1909218, 81827804), the Science Fund for Creative Research Groups of the National Natural Science Foundation of China (No. T2121004), the Academic Cultivation and Innovation Exploration Project of Guizhou Institute of Technology (No. GZLGXM-26), and the Young Scientific Technical Talents Development Fund of Guizhou Province (No. QJHKYC[2022]359).

语种：英文

外文关键词：3D printing; flexible electronics; gallium-based; liquid metals

摘要：The development of flexible electronics (FEs) has rapidly accelerated in numerous fields due to their exceptional deformability, bending, and stretchability. Room-temperature gallium-based liquid metals (LMs) are considered as efficient conductive materials for FEs due to their outstanding electrical conductivity and intrinsic flexibility. Recently, 3D printing has become a promising technique for fabricating FEs. However, the poor printability due to high surface tension and fluidity offers huge challenges in the 3D printing of LMs. This review summarizes the effective strategies to address these challenges. It primarily focuses on three points: 1) how to improve the printability of LM and its wettability with the substrate, 2) how to select the appropriate printing method to improve the printing speed and ensure the resolution of printing structure, and 3) how to provide perfect encapsulation for LM-based FEs with 3D printing. Following a brief introduction, the mainstream printing technologies and recent developments in the 3D printing of LMs are provided, with an emphasis on the selection of printing method, improvement of printability, encapsulation, and conductivity activation. Then, the revolutionary changes attained after 3D printing of LMs are specifically focused upon. Finally, opinions and potential directions for this thriving discipline are explored.