Recent progress in the assembly of nanodevices and van der Waals heterostructures by deterministic placement of 2D materials

• Published in: arXiv.org
• Main Authors: Frisenda, Riccardo, Navarro-Moratalla, Efrén, Gant, Patricia, Pérez De Lara, David, Jarillo-Herrero, Pablo, Gorbachev, Roman V, Castellanos-Gomez, Andres
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 15.11.2017
• Subjects: Bilayers; Electronic devices; Fiber optics; Heterostructures; Nanofabrication; Nanotechnology devices; Optical fibers; Photonics; Physics - Applied Physics; Physics - Materials Science; Physics - Mesoscale and Nanoscale Physics; Placement; State-of-the-art reviews; Twisting; Two dimensional materials; Waveguides
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.1712.04035

Designer heterostructures can now be assembled layer-by-layer with unmatched precision thanks to the recently developed deterministic placement methods to transfer two-dimensional (2D) materials. This possibility constitutes the birth of a very active research field on the so-called van der Waals heterostructures. Moreover, these deterministic placement methods also open the door to fabricate complex devices, which would be otherwise very difficult to achieve by conventional bottom-up nanofabrication approaches, and to fabricate fully-encapsulated devices with exquisite electronic properties. The integration of 2D materials with existing technologies such as photonic and superconducting waveguides and fiber optics is another exciting possibility. Here, we review the state-of-the-art of the deterministic placement methods, describing and comparing the different alternative methods available in the literature and we illustrate their potential to fabricate van der Waals heterostructures, to integrate 2D materials into complex devices and to fabricate artificial bilayer structures where the layers present a user-defined rotational twisting angle.