Monolayer black phosphorus by sequential wet-chemical surface oxidation

Wild S, Lloret V, Vega-Mayoral V, Vella D, Nuin E, Siebert M, Kolesnik-Gray M, Loeffler M, Mayrhofer KJJ, Gadermaier C, Krstic V, Hauke F, Abellán G, Hirsch A (2019)

Publication Type: Journal article, Original article

Publication year: 2019

Journal

RSC Advances Royal Society of Chemistry

Book Volume: 9

Pages Range: 3570-3576

Journal Issue: 7

DOI: 10.1039/c8ra09069f

Abstract

We report a straightforward chemical methodology for controlling the thickness of black phosphorus flakes down to the monolayer limit by layer-by-layer oxidation and thinning, using water as solubilizing agent. Moreover, the oxidation process can be stopped at will by two different passivation procedures, namely the non-covalent functionalization with perylene diimide chromophores, which prevents the photooxidation, or by using a protective ionic liquid layer. The obtained flakes preserve their electronic properties as demonstrated by fabricating a BP field-effect transistor (FET). This work paves the way for the preparation of BP devices with controlled thickness.

Authors with CRIS profile

Stefan Wild Sonderforschungsbereich 953/3 Synthetische Kohlenstoffallotrope Vicente Josep Lloret Segura Zentralinstitut für Neue Materialien und Prozesstechnik Martin Siebert Sonderforschungsbereich 953/3 Synthetische Kohlenstoffallotrope Maria Kolesnik-Gray Chair of Applied Physics Vojislav Krstic Professur für Angewandte Physik Frank Hauke Zentralinstitut für Neue Materialien und Prozesstechnik Gonzalo Abellan Saez Zentralinstitut für Neue Materialien und Prozesstechnik Andreas Hirsch Lehrstuhl für Organische Chemie II

Involved external institutions

Forschungszentrum Jülich / Research Centre Jülich (FZJ) DE Germany (DE) Trinity College Dublin IE Ireland (IE) Jožef Stefan Institute SI Slovenia (SI)

How to cite

APA:

Wild, S., Lloret, V., Vega-Mayoral, V., Vella, D., Nuin, E., Siebert, M.,... Hirsch, A. (2019). Monolayer black phosphorus by sequential wet-chemical surface oxidation. RSC Advances, 9(7), 3570-3576. https://dx.doi.org/10.1039/c8ra09069f

MLA:

Wild, Stefan, et al. "Monolayer black phosphorus by sequential wet-chemical surface oxidation." RSC Advances 9.7 (2019): 3570-3576.

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