Issue 60, 2019

Thickness dependent thermal stability of 2D gallenene

Abstract

The recent discovery of two-dimensional (2D) gallium, in the form of metallic gallenene, has added to a long history of interest in the thermodynamic stability and structures of gallium. Despite research suggesting that two-dimensionality and surface stabilisation play an important role in both bulk and nanostructures of gallium, the properties and stability of different forms of 2D structures have remained unexplored. Through extensive density functional theory simulations, we investigate the structure and thermal stability of freestanding bilayer and trilayer gallenene. Our results show that reducing bulk gallium to two dimensions actually enhances the thermal stability. We also discover the origin of this intriguing result.

Graphical abstract: Thickness dependent thermal stability of 2D gallenene

Supplementary files

Article information

Article type
Communication
Submitted
26 Dzi 2019
Accepted
19 Kho 2019
First published
19 Kho 2019

Chem. Commun., 2019,55, 8872-8875

Thickness dependent thermal stability of 2D gallenene

K. G. Steenbergen and N. Gaston, Chem. Commun., 2019, 55, 8872 DOI: 10.1039/C9CC03238J

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