Novel electrohydrodynamic jet-printing of organic silver ink in unforced form

作者：Wang Ke^*; Paine Mark D; Stark John P W

来源：Optoelectronics and Advanced Materials-Rapid Communications, 2010, 4(3): 365-368.

• E-jet printing
• Unforced electrospray
• Freeform microdeposition
• nanofabrication

Novel electrohydrodynamic atomization of metallo-organic silver ink in fully voltage-controlled form was investigated. During the spray, different atomization modes including pulsation and cone-jet were observed by a high-resolution CCD video microscope. By using an electrified-fluid-jet in either pulsed transient or steady mode, silver relics with similar to 200 mu m diameters were successfully deposited on a Si substrate. Distinction in the morphology of the relics was revealed by SEM, which can be attributed to the varying jetting throughput at different voltages, and particularly in different modes. EDX analysis confirmed the main composition in all the relics after heat treatment was silver. The results demonstrated that pulsation and cone-jet are both effective modes in electrohydrodynamic jet (e-jet) printing.

• 出版日期2010-3