The role of gas-phase dynamics in interfacial phenomena during few-layer graphene growth through atmospheric pressure chemical vapour deposition

Fauzi, Fatin Bazilah and Ismail, Edhuan and Syed Abu Bakar, Syed Noh and Ismail, Ahmad Faris and Mohamed, Mohd Ambri and Md Din, Muhammad Faiz and Illias, Suhaimi and Ani, Mohd Hanafi (2019) The role of gas-phase dynamics in interfacial phenomena during few-layer graphene growth through atmospheric pressure chemical vapour deposition. Physical Chemistry Chemical Physics, 22 (6). pp. 3481-3489. ISSN 1463-9076 E-ISSN 1463-9084

	PDF - Published Version Restricted to Registered users only Download (3MB) | Request a copy
Preview	PDF (scopus) - Supplemental Material Download (77kB) | Preview
Preview	PDF (wos) - Supplemental Material Download (191kB) | Preview

Abstract

The complicated chemical vapour deposition (CVD) is currently the most viable method of producing graphene. Most studies have extensively focused on chemical aspects either through experiments or computational studies. However, gas-phase dynamics in CVD reportedly plays an important role in improving graphene quality. Given that mass transport is the rate-limiting step for graphene deposition in atmospheric-pressure CVD (APCVD), the interfacial phenomena at the gas–solid interface (i.e., the boundary layer) are a crucial controlling factor. Accordingly, only by understanding and controlling the boundary-layer thickness can uniform full-coverage graphene deposition be achieved. In this study, a simplified computational fluid dynamics analysis of APCVD was performed to investigate gas-phase dynamics during deposition. Boundary-layer thickness was also estimated through the development of a customised homogeneous gas model. Interfacial phenomena, particularly the boundary layer and mass transport within it, were studied. The effects of Reynolds number on these factors were explored and compared with experimentally obtained results of the characterised graphene deposit. We then discussed and elucidated the important relation of fluid dynamics to graphene growth through APCVD.

Item Type:	Article (Letter)
Additional Information:	4856/81021
Uncontrolled Keywords:	Graphene growth, APCVD
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Dr Mohd Hanafi Ani
Date Deposited:	20 Jul 2020 15:53
Last Modified:	20 Jul 2020 15:53
URI:	http://irep.iium.edu.my/id/eprint/81021

Actions (login required)

View Item