Nanoscale, Electrified Liquid Jets for High-Resolution Printing of Charge
Nanoscale, Electrified Liquid Jets for High-Resolution Printing of Charge
复制标题
DOI：
10.1021/nl903495f
复制
发表时间：
2010-02-01
期刊：
影响因子：
10.8
通讯作者：
Rogers, John A.
中科院分区：
文献类型：
--
作者：
Park, Jang-Ung;Lee, Sangkyu;Rogers, John A.
几乎所有的微米和纳米纤维的研究都集中在材料的固体结构的形成上，这些材料可以执行一些机械，电气，光学或相关功能。相比之下，制造电荷图案是一个很少探索的领域，这是一个独立的领域，而且越来越有趣，因为相关的电场可以用来控制纳米级电子和机械设备的行为，引导纳米材料的组装，或者调节生物系统的特性。本文描述了一种多功能技术，该技术使用由电流体动力学在微米和纳米级喷嘴形成的精细带电液体射流来打印正负电荷的复杂图案，其分辨率可以扩展到亚微米和纳米范围。报告的结果建立了这个过程的基本方面，并通过在各种液体油墨，包括纳米粒子和纳米线的悬浮液中具有不同几何形状和电荷配置的印刷图案来展示能力。使用印刷电荷来控制硅纳米膜晶体管的特性提供了一个应用实例。
Nearly all research in micro- and nanofabrication focuses on the formation of solid structures of materials that perform some mechanical, electrical, optical, or related function. Fabricating patterns of charges, by contrast, is a much less well explored area that is of separate and growing interesting because the associated electric fields can be exploited to control the behavior of nanoscale electronic and mechanical devices, guide the assembly of nanomaterials, or modulate the properties of biological systems. This paper describes a versatile technique that uses fine, electrified liquid jets formed by electrohydrodynamics at micro- and nanoscale nozzles to print complex patterns of both positive and negative charges, with resolution that can extend into the submicrometer and nanometer regime. The reported results establish the basic aspects of this process and demonstrate the capabilities through printed patterns with diverse geometries and charge configurations in a variety of liquid inks, including suspensions of nanoparticles and nanowires. The use of printed charge to control the properties of silicon nanomembrane transistors provides an application example.