对于氧化锌棒状结构的介电泳操控研究

Manipulation of ZnO Particles Using Dielectrophoresis

主要研究电极形貌,频率,浓度,电压对于微粒介电泳操控影响的情况。我们采用溶液法制备ZnO棒状结构,长度在10μm左右,然后用微滴管定量地滴在自行制作的微米间隙电极间进行介电泳操控,通过控制不同条件,实现了ZnO棒按电场有明显分布的情况。并通过SEM图像了解电极,频率,电压,浓度对于ZnO介电泳操控的影响,掌握介电操控的主要影响因素。

Pattern of electrodes, frequency, concentration and voltage have been described to research the manipulation of particles by dielectrophoresis. The ZnO particles have been formed in aqueous solution, the length of which is about 10 μm, and then, the ZnO sample droplet was dropped on the several elec- trode pairs by micro-dropper. We succeeded in manipulating ZnO particles along the electric field and de- posited them across the gaps between two electrodes by modulating many different factors. In the end the SEM pictures have been used to prove and recognize the effect of such factors.