Shi Shiwei, Abbas Zeshan, Zhao Xiangyu, Liang Junsheng, Wang Dazhi
Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian 116024, China.
Nanomaterials (Basel). 2023 Apr 25;13(9):1457. doi: 10.3390/nano13091457.
This paper presents the concrete design of nanowires under the precise size and morphology that play a crucial role in the practical operation of the micro/nano devices. A straightforward and operative method termed as nib-assistance coaxial electrohydrodynamic (CEHD) printing technology was proposed. It extracts the essence of a nib-assistance electric field intensity to enhance and lessen the internal fluid reflux of the CEHD jet. The experiments were performed to add microparticles into the inner liquid to indicate the liquid flow consistency within the coaxial jet. The reflux in the coaxial jet was observed for the first time in experiments. The nanowires with a minimum size of 70 nm were printed under optimum experimental conditions. The nanopatterns contained aligned nanowires structures with diameters much smaller than the inner diameter of nozzle, relying on the coaxial nib-assisted technique. The printed results revealed that the nib-assisted CEHD printing technique offers a certain level high quality for application of NEMS system.
本文介绍了在精确尺寸和形态下纳米线的具体设计，这些尺寸和形态在微纳器件的实际操作中起着至关重要的作用。提出了一种直接且可操作的方法，称为笔尖辅助同轴电流体动力学（CEHD）打印技术。该方法提取了笔尖辅助电场强度的本质，以增强和减少CEHD射流的内部流体回流。进行了将微粒添加到内部液体中的实验，以表明同轴射流内的液体流动一致性。在实验中首次观察到同轴射流中的回流。在最佳实验条件下打印出了最小尺寸为70nm的纳米线。借助同轴笔尖辅助技术，纳米图案包含排列整齐的纳米线结构，其直径远小于喷嘴的内径。打印结果表明，笔尖辅助CEHD打印技术为NEMS系统的应用提供了一定程度的高质量。
