印刷电路板
光电子学
纳米技术
材料科学
电气工程
工程类
作者
Minsik Kong,Man Hou Vong,Mingyu Kwak,Ighyun Lim,Y Lee,S.G. Lee,Insang You,Omar Awartani,Jimin Kwon,Tae Joo Shin,Unyong Jeong,Michael D. Dickey
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2024-08-16
卷期号:385 (6710): 731-737
标识
DOI:10.1126/science.adp3299
摘要
Metal oxide films are essential in most electronic devices, yet they are typically deposited at elevated temperatures by using slow, vacuum-based processes. We printed native oxide films over large areas at ambient conditions by moving a molten metal meniscus across a target substrate. The oxide gently separates from the metal through fluid instabilities that occur in the meniscus, leading to uniform films free of liquid residue. The printed oxide has a metallic interlayer that renders the films highly conductive. The metallic character of the printed films promotes wetting of trace amounts of evaporated gold that would otherwise form disconnected islands on conventional oxide surfaces. The resulting ultrathin (<10 nanometers) conductors can be patterned into flexible circuits that are transparent, mechanically robust, and electrically stable, even at elevated temperatures.
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