Inkjet printing-based fabrication of microscale 3D ice structures

作     者：Fengyi Zheng Zhongyan Wang Jiasheng Huang Zhihong Li Fengyi Zheng;Zhongyan Wang;Jiasheng Huang;Zhihong Li

作者机构：National Key Laboratory of Science and Technology on Micro/Nano FabricationInstitute of MicroelectronicsPeking UniversityBeijing 100871China 

出 版 物：《Microsystems & Nanoengineering》 (微系统与纳米工程（英文）)

年 卷 期：2020年第6卷第1期

页      面：305-314页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0811[工学-控制科学与工程] 080201[工学-机械制造及其自动化] 0702[理学-物理学] 

基　　金：This work was supported by the National Key Research and Development Program of China(No.2016YFA0200802) the 111 Project(B18001). 

主　　题：printing structures hundreds 

摘      要：This study proposed a method for fabricating 3D microstructures of ice without a supporting material.The inkjet printing process was performed in a low humidity environment to precisely control the growth direction of the ice crystals.In the printing process,water droplets(volume=hundreds of picoliters)were deposited onto the previously formed ice structure,after which they immediately froze.Different 3D structures(maximum height=2000µm)could be formed by controlling the substrate temperature,ejection frequency and droplet size.The growth direction was dependent on the landing point of the droplet on the previously formed ice structure;thus,3D structures could be created with high degrees of freedom.