Protective molecular passivation of black phosphorus

Vlada Artel, Qiushi Guo, Hagai Cohen, Raymond Gasper, Ashwin Ramasubramaniam, Fengnian Xia, Doron Naveh

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

Black phosphorus is a fascinating layered material, with extraordinary anisotropic mechanical, optical and electronic properties. However, the sensitivity of black phosphorus to oxygen and moisture poses significant challenges for technological applications of this unique material. Here, we report a viable solution that overcomes degradation of few-layer black phosphorus by passivating the surface with self-assembled monolayers of octadecyltrichlorosilane that provide long-term stability in ambient conditions. Importantly, we show that this treatment does not cause any undesired carrier doping of the bulk channel material, thanks to the emergent hierarchical interface structure. Our approach is compatible with conventional electronic materials processing technologies thus providing an immediate route toward practical applications in black phosphorus devices.

Original languageEnglish
Article number6
Journalnpj 2D Materials and Applications
Volume1
Issue number1
DOIs
StatePublished - 1 Dec 2017

Bibliographical note

Publisher Copyright:
© 2017, The Author(s).

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