Han Y D, Zhang S M, Jing H Y, Wei J, Bu F H, Zhao L, Lv X Q, Xu L Y
School of Materials Science and Engineering, Tianjin University, Tianjin 300350, People's Republic of China. Tianjin Key Laboratory of Advanced Joining Technology, Tianjin 300350, People's Republic of China.
Nanotechnology. 2018 Apr 3;29(13):135301. doi: 10.1088/1361-6528/aaaa31.
With the aim of developing highly conductive ink for flexible electronics on heat-sensitive substrates, Ag nanospheres and nanoplates were mixed to synthesize hybrid inks. Five kinds of hybrid ink and two types of pure ink were written to square shape on Epson photo paper using rollerball pens, and sintered at a low temperature (100 °C). The microstructure, electrical resistivity, surface porosity, hardness and flexibility of silver patterns were systematically investigated and compared. It was observed that the optimal mixing ratio of nanospheres and nanoplates was 1:1, which equipped the directly written pattern with excellent electrical and mechanical properties. The electrical resistivity was 0.103 μΩ · m, only 6.5 times that of bulk silver. The enhancement compared to pure silver nanospheres or nanoplates based ink was due to the combined action of nanospheres and nanoplates. This demonstrates a valuable way to prepare Ag nanoink with good performance for printed/written electronics.
为了开发用于热敏基板上柔性电子器件的高导电油墨，将银纳米球和纳米片混合以合成混合油墨。使用圆珠笔将五种混合油墨和两种纯油墨书写在爱普生相纸上形成方形，并在低温（100°C）下烧结。系统地研究并比较了银图案的微观结构、电阻率、表面孔隙率、硬度和柔韧性。观察到纳米球和纳米片的最佳混合比例为1:1，这使得直接书写的图案具有优异的电学和力学性能。电阻率为0.103μΩ·m，仅为块状银的6.5倍。与基于纯银纳米球或纳米片的油墨相比有所增强，这是由于纳米球和纳米片的共同作用。这展示了一种制备用于印刷/书写电子器件的高性能银纳米油墨的有价值方法。
