Issue 3, 2024

Wafer-scale synthesis of two-dimensional ultrathin films

Abstract

Two-dimensional (2D) materials, consisting of atomically thin layered crystals, have attracted tremendous interest due to their outstanding intrinsic properties and diverse applications in electronics, optoelectronics, and catalysis. The large-scale growth of high-quality ultrathin 2D films and their utilization in the facile fabrication of devices, easily adoptable in industrial applications, have been extensively sought after during the last decade; however, it remains a challenge to achieve these goals. Herein, we introduce three key concepts: (i) the microwave assisted quick (∼1 min) synthesis of wafer-scale (6-inch) anisotropic conducting ultrathin (∼1 nm) amorphous carbon and 2D semiconducting metal chalcogenide atomically thin films, (ii) a polymer-assisted deposition process for the synthesis of wafer-scale (6-inch) 2D metal chalcogenide and pyrolyzed carbon thin films, and (iii) the surface diffusion and epitaxial self-planarization induced synthesis of wafer-scale (2-inch) single crystal 2D binary and large-grain 2D ferromagnetic ternary metal chalcogenide thin films. The proposed synthesis concepts can pave a new way for the manufacture of wafer-scale high quality 2D ultrathin films and their utilization in the facile fabrication of devices.

Graphical abstract: Wafer-scale synthesis of two-dimensional ultrathin films

Article information

Article type
Feature Article
Submitted
17 sep 2023
Accepted
05 dec 2023
First published
05 dec 2023

Chem. Commun., 2024,60, 265-279

Wafer-scale synthesis of two-dimensional ultrathin films

A. K. Singh, B. Thakurta, A. Giri and M. Pal, Chem. Commun., 2024, 60, 265 DOI: 10.1039/D3CC04610A

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