Nanofabrication Techniques in Large-Area Molecular Electronic Devices

Abstract

The societal impact of the electronics industry is enormous&mdashnot to mention how this industry impinges on the global economy. The foreseen limits of the current technology&mdashtechnical, economic, and sustainability issues&mdashopen the door to the search for successor technologies. In this context, molecular electronics has emerged as a promising candidate that, at least in the short-term, will not likely replace our silicon-based electronics, but improve its performance through a nascent hybrid technology. Such technology will take advantage of both the small dimensions of the molecules and new functionalities resulting from the quantum effects that govern the properties at the molecular scale. An optimization of interface engineering and integration of molecules to form densely integrated individually addressable arrays of molecules are two crucial aspects in the molecular electronics field. These challenges should be met to establish the bridge between organic functional materials and hard electronics required for the incorporation of such hybrid technology in the market. In this review, the most advanced methods for fabricating large-area molecular electronic devices are presented, highlighting their advantages and limitations. Special emphasis is focused on bottom-up methodologies for the fabrication of well-ordered and tightly-packed monolayers onto the bottom electrode, followed by a description of the top-contact deposition methods so far used.

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Herrer L, Martín S, Cea P. Nanofabrication Techniques in Large-Area Molecular Electronic Devices. Applied Sciences. 2020; 10(17):6064.https://doi.org/10.3390/app10176064

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