石墨烯微结构的电喷射按需打印研究

Research on Electrohydrodynamic Drop-on-Demand Printing of Graphene Micro-Scale Structure

采用电喷射按需打印工艺,以石墨烯悬浮液为打印材料,打印制备了石墨烯微结构,研究了高压脉冲电压幅值和脉冲频率参数对打印石墨烯微结构的影响。结果表明,过高或者过低的脉冲幅值都不利于打印的稳定性;脉冲频率则会直接影响到石墨烯微结构的尺度。最终,利用电喷射按需打印工艺,打印出线宽约为40μm的石墨烯微结构图案。

Electrohydrodynamic drop-on-demand printing technique was applied to fabricate graphene micro-scale structures by using graphene dispersion. The effects of high pulse voltage amplitude and frequency on the printing graphene micro-scale structures were investigated. It was found that the printing process would be unstable if the pulse amplitude was too high or too low. Besides,the pulse frequency has direct impact on the size of graphene micro-scale structures. Finally, graphene micro-scale structure patterns with line width of about 40 μm were fabricated via electrohydrodynamic drop-on-demand printing.