Journal article

Liquid Phase Acoustic Wave Exfoliation of Layered MoS2: Critical Impact of Electric Field in Efficiency

Md Mohiuddin, Yichao Wang, Ali Zavabeti, Nitu Syed, Robi S Datta, Heba Ahmed, Torben Daeneke, Salvy P Russo, Amgad R Rezks, Leslie Y Yeo, Kourosh Kalantar-Zadeh



Liquid phase exfoliation techniques of layered crystals establish the basis for high yield production of two-dimensional (2D) flakes suspension. However, such techniques generally require a long processing time. The recent demonstration of the piezoelectric phenomenon in noncentrosymmetric layered transition metal dichalcogenides, such as molybdenum disulfide (MoS2), leads to new opportunities for fast and efficient exfoliation processes. Here we use concomitant electric field and mechanical shear force for producing a suspension of MoS2 nanoflakes from exfoliation of their layered bulk powder particles. The electrical and mechanical fields are applied by a surface acoustic wave (SAW) microc..

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University of Melbourne Researchers


Awarded by Australian Research Council

Awarded by ARC Centre of Excellence in Future Low-Energy Electronics Technologies (FLEET)

Funding Acknowledgements

We thank the assistance of the RMIT Microscopy and Microanalysis Facility (RMMF) and the RMIT Micro Nano Research Facility (MNRF). A.R.R is grateful for RMIT Vice-Chancellor's Research Fellowship. L.Y.Y. is a recipient of a Future Fellowship from the Australian Research Council under grant FT130100672. K.K. and T.D. acknowledge funding received from the ARC Centre of Excellence in Future Low-Energy Electronics Technologies (FLEET) (CE170100039).