液态金属印刷电子墨水研究进展  

Research Advancement of Liquid Metal Printed Electronics Ink

作　　者：王磊[1] 刘静[1] 

机构地区：[1]中国科学院理化技术研究所低温生物与医学实验室,北京100190

出　　处：《影像科学与光化学》2014年第4期382-392,共11页Imaging Science and Photochemistry

基　　金：中国科学院重点部署项目(KGZD-EW-T04)资助

摘　　要：印刷电子是一种基于印刷原理的新兴电子增材制造技术,与传统电子加工方法相比,它在大面积、柔性化、个性化、低成本制造电子等方面具有无可比拟的优势。印刷电子所用的典型导电墨水通常分为三类:碳系、高分子及金属导电墨水,然而它们在打印后仍需借助高温后处理工艺,以进一步提升打印物及墨水的电导率及运行可靠性,步骤稍显繁琐;且由于相应纳米材料及墨水的配制较为复杂,也增加了使用的成本。液态金属作为一大类新出现的电子打印墨水,近年来正日益成为重要的研究领域,这种墨水具有电导率高、制备简单、无需后处理等独特优点。为推动这一方向的研究,本文评述了国内外围绕液态金属导电墨水物理化学性质的研究进展及对应的典型打印方法,并指出了进一步发展的方向。Printed electronics, which is based on the printing principle, is a newly emerging additive manufacturing technology. It has many advantages for electronics making such as large area, flexibility, personalized and low cost compared to conventional electronics manufacturing. There are generally three typical conductive inks used in printed electronics., conductive carbon ink, conductive polymer and metal conductive ink. However, post-treatments v/a high temperature curing process are often needed after such printing, so as to improve conductivities as well as reliability of these inks and the printed products. This makes the fabrication process somewhat complicated. Besides, the complex preparation process of the nano materials and inks thus formed also raised the application cost. As a new class of conductive ink, the liquid metal is becoming an important research area. Such ink material owns unique merits such as high electronic conductivity, simple preparation process, requesting no post-processing and so on. To further push forward the research along this direction, this article is dedicated to present an overview on the research advancement of the physical and chemical properties of the liquid metal ink and related typical printing methods over the world. Prospective directions worth of pursuing were outlined.

关 键 词：印刷电子 导电墨水 液态金属 氧化性 润湿性 电导率 

分 类 号：TS802[轻工技术与工程]