Journal article
A Predictive Model for Monolayer-Selective Metal-Mediated MoS2 Exfoliation Incorporating Electrostatics
A Corletto, M Fronzi, AK Joannidis, PC Sherrell, MJ Ford, DA Winkler, JG Shapter, J Bullock, AV Ellis
Advanced Materials Interfaces | WILEY | Published : 2024
Abstract
The metal-mediated exfoliation (MME) method enables monolayer-selective exfoliation of van der Waals (vdW) crystals, improving the efficacy of large monolayer production. Previous physical models explaining monolayer-selective MME propose that the main contributors to monolayer-selectivity are vdW crystal/metal surface binding energy and/or vdW crystal layer strain resulting from lattice mismatch. However, the performance of some metals for MME is inconsistent with these models. Here, a new model is proposed using MoS2 as a representative vdW crystal. The model explains how the MoS2/metal interface electrostatics, in combination with strain, determines monolayer-selectivity of MME by modulat..
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Grants
Awarded by Australian Research Council
Funding Acknowledgements
A.C., M.F., D.A.W., J.G.S., and A.V.E. acknowledge support from the Australian Research Council Discovery Project Scheme, grant number: DP200101217. P.C.S. acknowledges support from the Elizabeth & Vernon Puzey Foundation via the Elizabeth & Vernon Puzey Fellowship at the University of Melbourne, and support from RMIT University via the Vice-Chancellor's Research Fellowship Scheme. This work was performed in part at the Materials Characterisation and Fabrication Platform (MCFP) at the University of Melbourne and the Victorian Node of the Australian National Fabrication Facility (ANFF).Open access publishing facilitated by The University of Melbourne, as part of the Wiley - The University of Melbourne agreement via the Council of Australian University Librarians.