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首页> 外文会议>Irago Conference >Single-Electron Charging Effects Observed in Arrays of Gold Nanoparticles Formed by Dielectrophoresis between SAM-Coated Electrodes
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Single-Electron Charging Effects Observed in Arrays of Gold Nanoparticles Formed by Dielectrophoresis between SAM-Coated Electrodes

机译：在由SAM涂覆电极之间的介电泳形成的金纳米粒子阵列中观察到的单电子充电效果

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In the fabrication of single-electron (SE) devices with gold nanoparticles (GNPs), one of the technical challenges is the arrangement of GNPs into a gap between electrodes. We employed dielectrophoresis (DEP) for the GNP arrangement because it allowed flexible fabrication conditions. When we tried to arrange GNPs into a gap between electrodes, we often had an excessive current during DEP, which resulted in poor fabrication yields. It suggested that the Joule heat generated by the excessive current could break or fused arrays of GNPs when the electrodes were bridged through the arrays. In order to solve this problem, we coated the electrode surfaces with a self-assembled monolayer (SAM) of dithiol, by which high resistance between GNPs and electrodes was realized. That is, suppression of excess currents and improvement of fabrication yield were confirmed. We also demonstrated that a sample device fabricated by using this method exhibited not only the Coulomb blockade but also the Coulomb oscillation.
机译：在用金纳米颗粒（GNPS）的单电子（SE）器件的制造中，技术挑战之一是GNP的布置在电极之间的间隙中。我们使用用于GNP布置的介电泳（DEP），因为它允许柔性制造条件。当我们尝试将GNP安排到电极之间的间隙中时，我们经常在DEP期间具有过多的电流，从而产生差的制造产量。它建议当电极通过阵列桥接时，通过过电流产生的焦耳热量可以破坏或熔断GNP阵列。为了解决这个问题，我们用二硫醇的自组装单层（SAM）涂覆了电极表面，通过该电极表面实现了GNP和电极之间的高性能。也就是说，确认了抑制过量的电流和改善制造产量。我们还证明，使用该方法制造的样品装置不仅表现出库仑封锁，而且还表现出库仑振荡。

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