Laser-based synthesis of atomically thin monolayer 2D quantum materials

Nurul Azam; Zabihollah Ahmadi; Masoud Mahjouri-Samani

doi:10.1117/12.2579102

5 March 2021 Laser-based synthesis of atomically thin monolayer 2D quantum materials

Nurul Azam, Zabihollah Ahmadi, Masoud Mahjouri-Samani

Proceedings Volume 11675, Synthesis and Photonics of Nanoscale Materials XVIII; 116750F (2021) https://doi.org/10.1117/12.2579102
Event: SPIE LASE, 2021, Online Only

Abstract

The vapor or gas-phase synthesis methods (e.g., CVD) are widely adopted to grow mono and few-layer two-dimensional (2D) materials. However, uncontrolled gas-phase reactions, complex flow dynamics, and limited reproducibility have made the gas phase growth of monolayer TMDCs crystals extremely challenging. Here we introduce a novel laser-assisted synthesis method for the rapid growth of various 2D materials. To produce the atomically-thin crystals, instead of using conventional multi-component precursors, this synthesis method utilizes stoichiometric powders as precursors that are laser vaporized to create the right vapor flux for the controlled growth of mono and few-layer crystals. We demonstrate a successful synthesis of four semiconducting TMDC monolayers such as MoS₂, MoSe₂, WSe₂, and WS₂ crystals. This laser vaporization process promises an efficient general synthesis solution for the accelerated growth of a variety of high-quality 2D quantum materials.

Conference Presentation

Citation Download Citation

Nurul Azam, Zabihollah Ahmadi, and Masoud Mahjouri-Samani "Laser-based synthesis of atomically thin monolayer 2D quantum materials", Proc. SPIE 11675, Synthesis and Photonics of Nanoscale Materials XVIII, 116750F (5 March 2021); https://doi.org/10.1117/12.2579102

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