Issue 6, 2021

Growth and in situ characterization of 2D materials by chemical vapour deposition on liquid metal catalysts: a review

Abstract

2D materials (2DMs) have now been established as unique and attractive alternatives to replace current technological materials in a number of applications. Chemical vapour deposition (CVD), is undoubtedly the most renowned technique for thin film synthesis and meets all requirements for automated large-scale production of 2DMs. Currently most CVD methods employ solid metal catalysts (SMCat) for the growth of 2DMs however their use has been found to induce structural defects such as wrinkles, fissures, and grain boundaries among others. On the other hand, liquid metal catalysts (LMCat), constitute a possible alternative for the production of defect-free 2DMs albeit with a small temperature penalty. This review is a comprehensive report of past attempts to employ LMCat for the production of 2DMs with emphasis on graphene growth. Special attention is paid to the underlying mechanisms that govern crystal growth and/or grain consolidation and film coverage. Finally, the advent of online metrology which is particularly effective for monitoring the chemical processes under LMCat conditions is also reviewed and certain directions for future development are drawn.

Graphical abstract: Growth and in situ characterization of 2D materials by chemical vapour deposition on liquid metal catalysts: a review

Article information

Article type
Review Article
Submitted
13 okt 2020
Accepted
14 yan 2021
First published
15 yan 2021
This article is Open Access
Creative Commons BY-NC license

Nanoscale, 2021,13, 3346-3373

Growth and in situ characterization of 2D materials by chemical vapour deposition on liquid metal catalysts: a review

C. Tsakonas, M. Dimitropoulos, A. C. Manikas and C. Galiotis, Nanoscale, 2021, 13, 3346 DOI: 10.1039/D0NR07330J

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