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Epitaxial multilayers of alkanes on two-dimensional black phosphorus as passivating and electrically insulating nanostructures

Bolognesi, Margherita; Brucale, Marco; Lorenzoni, Andrea; Prescimone, Federico; Moschetto, Salvatore; Korolkov, Vladimir V.; Baldoni, Matteo; Serrano-Ruiz, Manuel; Caporali, Maria; Mercuri, Francesco; Besley, Elena; Muccini, Michele; Peruzzini, Maurizio; Beton, Peter H.; Toffanin, Stefano

Epitaxial multilayers of alkanes on two-dimensional black phosphorus as passivating and electrically insulating nanostructures Thumbnail


Authors

Margherita Bolognesi

Marco Brucale

Andrea Lorenzoni

Federico Prescimone

Salvatore Moschetto

Vladimir V. Korolkov

Matteo Baldoni

Manuel Serrano-Ruiz

Maria Caporali

Francesco Mercuri

Michele Muccini

Maurizio Peruzzini

PETER BETON peter.beton@nottingham.ac.uk
Professor of Physics

Stefano Toffanin



Abstract

© The Royal Society of Chemistry. Mechanically exfoliated two-dimensional (2D) black phosphorus (bP) is epitaxially terminated by monolayers and multilayers of tetracosane, a linear alkane, to form a weakly interacting van der Waals heterostructure. Atomic force microscopy (AFM) and computational modelling show that epitaxial domains of alkane chains are ordered in parallel lamellae along the principal crystalline axis of bP, and this order is extended over a few layers above the interface. Epitaxial alkane multilayers delay the oxidation of 2D bP in air by 18 hours, in comparison to 1 hour for bare 2D bP, and act as an electrical insulator, as demonstrated using electrostatic force microscopy. The presented heterostructure is a technologically relevant insulator-semiconductor model system that can open the way to the use of 2D bP in micro-and nanoelectronic, optoelectronic and photonic applications.

Citation

Bolognesi, M., Brucale, M., Lorenzoni, A., Prescimone, F., Moschetto, S., Korolkov, V. V., …Toffanin, S. (2019). Epitaxial multilayers of alkanes on two-dimensional black phosphorus as passivating and electrically insulating nanostructures. Nanoscale, 11(37), 17252-17261. https://doi.org/10.1039/c9nr01155b

Journal Article Type Article
Acceptance Date Jun 1, 2019
Online Publication Date Jul 18, 2019
Publication Date Oct 7, 2019
Deposit Date Aug 8, 2019
Publicly Available Date Aug 13, 2019
Journal Nanoscale
Print ISSN 2040-3364
Electronic ISSN 2040-3372
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 11
Issue 37
Pages 17252-17261
DOI https://doi.org/10.1039/c9nr01155b
Keywords General Materials Science
Public URL https://nottingham-repository.worktribe.com/output/2408013
Publisher URL https://pubs.rsc.org/en/content/articlelanding/2019/NR/C9NR01155B#!divAbstract
Additional Information : This document is Similarity Check deposited; : Supplementary Information; : Margherita Bolognesi (ORCID); : Marco Brucale (ORCID); : Andrea Lorenzoni (ORCID); : Salvatore Moschetto (ORCID); : Matteo Baldoni (ORCID); : Matteo Baldoni (ResearcherID); : Manuel Serrano-Ruiz (ORCID); : Maria Caporali (ORCID); : Francesco Mercuri (ORCID); : Elena Besley (ORCID); : Michele Muccini (ORCID); : Maurizio Peruzzini (ORCID); : Peter H. Beton (ORCID); : Stefano Toffanin (ORCID); : Stefano Toffanin (ResearcherID); : Single-blind; : Received 5 February 2019; Accepted 1 June 2019; Advance Article published 18 July 2019
Contract Date Aug 13, 2019