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A Cross-Scale Method of Fabricating Transverse Electrode-Embedded Nanopore

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With the development of the transverse tunneling current theory, electrode-embedded nanopore is considered as one of the most promising devices for label-free DNA sequencing. Though there have been a few approaches to fabricate transverse electrode-embedded nanopores, the method universality and nanogap control are still formidable tasks of fabricating a nano-scale electrodenanopore sensor. In this work, a cross-scale approach of fabricating nano-electrodes was proposed, and a 10 nm-width nano-electrode was obtained from 5 μm-width aurum (Au) line. Compared with traditional methods, only electron microscopy was involved in this process, which was a simple and effective method to fabricate electrode-embedded nanopores. Furthermore, the gap of nanoelectrodes was controllable as the nano-electrode was cut off by drilling nanopore. The feasibility of the method was investigated by practice. This article demonstrated a novel approach to fabricate transverse electrode-embedded nanopore which showed great application potential in fabricating nano-electrodes with gap smaller than 2 nm.
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Document Type: Short Communication

Publication date: August 1, 2016

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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