Skarżyński Kacper, Krzemiński Jakub, Jakubowska Małgorzata, Słoma Marcin
Micro- and Nanotechnology Division, Institute of Metrology and Biomedical Engineering, Faculty of Mechatronics, Warsaw University of Technology, 8 sw. A. Boboli st., 02-525, Warsaw, Poland.
CEZAMAT Centre for Advanced Materials and Technologies, Poleczki St. 19, 02-822, Warsaw, Poland.
Sci Rep. 2021 Sep 13;11(1):18141. doi: 10.1038/s41598-021-97312-5.
Recently, low-cost electronics printed on lightweight, flexible and 3D shaped substrates are gaining importance in the markets of wearables and smart packaging. However, printed electronics do not meet the electrical performance of subtractive techniques because the resistivity of metallic printed patterns is still much higher than that of bulk material. To fulfil this need, low-resistive and easy printable inks for high resolution printed electronics techniques are needed. In this work, parameters of silver nanoparticles ink for micro-scale printed electronics technique, Aerosol Jet Printing, are being enhanced. To increase electrical conductivity and enhance printability, surfactants and dispersing agents were used to increase ultrasonic atomisation efficiency, obtain a uniform structure of printed lines, and narrow the width of printed patterns. Electrical measurements show a decrease in resistivity value in samples enhanced by cationic and non-ionic surfactants, by 95%, compared to initially prepared inks. Surfactant additions to silver nanoparticles Aerosol Jet Printing ink show promising features for application in modern electronics.
近来，印刷在轻质、柔性及三维形状基板上的低成本电子产品在可穿戴设备和智能包装市场中愈发重要。然而，印刷电子产品无法达到减成技术的电气性能，因为金属印刷图案的电阻率仍远高于块状材料。为满足这一需求，需要用于高分辨率印刷电子技术的低电阻且易于印刷的油墨。在这项工作中，正在改进用于微尺度印刷电子技术——气溶胶喷射印刷的银纳米颗粒油墨的参数。为提高电导率并增强可印刷性，使用了表面活性剂和分散剂来提高超声雾化效率，获得印刷线路的均匀结构，并缩小印刷图案的宽度。电学测量表明，与最初制备的油墨相比，添加阳离子和非离子表面活性剂的样品的电阻率值降低了95%。向银纳米颗粒气溶胶喷射印刷油墨中添加表面活性剂显示出在现代电子产品中应用的良好前景。
