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Multi-island single-electron devices from self-assembled colloidal nanocrystal chains

机译:自组装胶体纳米晶体链的多岛单电子器件

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摘要

We report the fabrication of multi-island single-electron devices made by lithographic contacting of self-assembled alkanethiol-coated gold nanocrystals. The advantages of this method, which bridges the dimensional gap between lithographic and NC sizes, are (1) the fact that all tunnel junctions are defined by self-assembly rather than lithography and (2) the high ratio of gate capacitance to total capacitance. The rich electronic behavior of a double-island device, measured at 4.2 K, is predicted by combining finite element and Monte Carlo simulations, and it can be fully explained by the standard theory of Coulomb blockade with very few adjustable parameters.
机译:我们报告通过自组装烷硫醇涂层的金纳米晶体的平版印刷接触制造的多岛单电子器件的制造。这种方法的优点是弥合了光刻和NC尺寸之间的尺寸差距,其优点是(1)所有隧道结均由自组装而不是光刻来定义,以及(2)栅极电容与总电容的高比率。通过结合有限元和蒙特卡洛模拟来预测在4.2 K下测得的双岛装置的富电子行为,并且可以用很少的可调参数的库仑阻塞标准理论来充分解释。

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