Dielectrophoretic assembly of electrically functional microwires from nanoparticle suspensions
Dielectrophoretic assembly of electrically functional microwires from nanoparticle suspensions
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DOI：
10.1126/science.1063821
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发表时间：
2001-11-02
期刊：
影响因子：
56.9
通讯作者：
Velev, OD
中科院分区：
文献类型：
--
作者：
Hermanson, KD;Lumsdon, SO;Velev, OD
一类新型微线可以通过金属纳米粒子悬浮液的介电泳来组装。这些导线形成于平面电极之间的间隙中，并且可以以每秒 50 微米以上的速度生长，长度超过 5 毫米。它们具有良好的欧姆电导，并自动与导电岛或颗粒形成电连接。可以控制线的厚度和分形维数，并且可以组装具有被乳胶壳包围的金属芯的复合线。简单的组装工艺和高表面积体积比使这些结构有望用于湿电子和生物电子电路。
A new class of microwires can be assembled by dielectrophoresis from suspensions of metallic nanoparticles. The wires are formed in the gaps between planar electrodes and can grow faster than 50 micrometers per second to lengths exceeding 5 millimeters. They have good ohmic conductance and automatically form electrical connections to conductive islands or particles. The thickness and the fractal dimension of the wires can be controlled, and composite wires with a metallic core surrounded by a latex shell can be assembled. The simple assembly process and their high surface-to-volume ratio make these structures promising for wet electronic and bioelectronic circuits.