Electrostatic micromanipulation of a conductive/dielectric particle by a single probe

Saito, Shigeki; Sonoda, Masaki; Ochiai, Tadashi; Han, Min; Takahashi, Kunio

doi:10.1109/nano.2007.4601292

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…Then, the constant probe-to-plate voltage with magnitude V m is applied. When the voltage is applied, the particle repeatedly moves up and down [43,44]. The mean surface current I s is measured when the particle repeatedly moves.…”

Section: Surface Resistance R Smentioning

confidence: 99%

“…Our group has also studied the manipulation method using a single probe [37][38][39][40][41][42][43][44][45] as shown in figure 1. The manipulation system consists of three elements: a conductive probe as a manipulator, a conductive plate as a substrate, and a dielectric particle as the target object for manipulation.…”

Section: Introductionmentioning

confidence: 99%

“…The dielectric particle can be picked up/placed by controlling the electric field around the probe tip. Saito et al observed the phenomena that a dielectric particle repeatedly moves up and down between the probe and plate [43]. Utilizing this phenomena, Yamashima et al demonstrated the feasibility of electrostatic manipulation of a dielectric particle by applying a rectangular pulse voltage [44].…”

Section: Introductionmentioning

confidence: 99%

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The effect of surface conductivity and adhesivity on the electrostatic manipulation condition for dielectric microparticles using a single probe

Fujiwara¹,

Hemthavy²,

Takahashi³

et al. 2016

J. Micromech. Microeng.

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By clarifying the effect of surface conductivity and adhesivity on the electrostatic manipulation condition, a dielectric particle made of any material can be manipulated with surface conductivity. The manipulation system consists of three elements: a conductive probe as a manipulator, a conductive plate as a substrate, and a dielectric particle as the target object for manipulation. The particle can be successfully picked up/placed if a rectangular pulse voltage is applied between the probe and the plate. Four kinds of particle materials are used in the experiment: silica, soda-lime glass, polymethyl methacrylate coated by conductive polymer, and polystyrene coated by surfactant. The radius of each particle is 15 μm. A first-order resistor-capacitor (RC) circuit model is adopted to describe the effect of surface conductivity and adhesivity on the manipulation condition. The manipulation system is modeled as a series circuit consisting of a resistor and a capacitor by considering the surface conductivity. A detachment voltage is defined as the capacitance voltage to detach the particle adhered to the plate or probe. Parameters of the RC model, surface resistance, surface capacitance and detachment voltage are identified by a simulation and measurements.To verify the RC model, the particle's behavior is observed by a high-speed camera, and the electrical current is measured by an electrometer. A manipulation experiment is demonstrated to show the effectiveness of the model. The particle reaction is observed for each duration and magnitude of the pulse voltage for the manipulation. The optimum pulse voltage for successful manipulation is determined by the parameters of the RC model as the standard. This knowledge is expected to expand the possibility of micro-fabrication technology.

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Section: Surface Resistance R Smentioning

confidence: 99%