Scalable Manufacturing of Nanogaps

Advanced Materials
Valentin DuboisFrank Niklaus

Abstract

The ability to manufacture a nanogap in between two electrodes has proven a powerful catalyst for scientific discoveries in nanoscience and molecular electronics. A wide range of bottom-up and top-down methodologies are now available to fabricate nanogaps that are less than 10 nm wide. However, most available techniques involve time-consuming serial processes that are not compatible with large-scale manufacturing of nanogap devices. The scalable manufacturing of sub-10 nm gaps remains a great technological challenge that currently hinders both experimental nanoscience and the prospects for commercial exploitation of nanogap devices. Here, available nanogap fabrication methodologies are reviewed and a detailed comparison of their merits is provided, with special focus on large-scale and reproducible manufacturing of nanogaps. The most promising approaches that could achieve a breakthrough in research and commercial applications are identified. Emerging scalable nanogap manufacturing methodologies will ultimately enable applications with high scientific and societal impact, including high-speed whole genome sequencing, electromechanical computing, and molecular electronics using nanogap electrodes.

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Citations

Aug 24, 2019·Small·Pasquale D'AngeloSalvatore Iannotta
Jan 31, 2019·ACS Applied Materials & Interfaces·Alessandro EnricoGöran Stemme
Nov 2, 2021·Advanced Science·Sihai LuoJohn C de Mello

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