Chemical Vapour Deposition of Graphene

2016 ◽  
Author(s):  
Joelle Thorgrimson
Keyword(s):  
Silicon Dioxide ◽  
Chemical Vapour Deposition ◽  
Vapour Deposition ◽  
Chemical Vapour ◽  
Atomic Layer ◽  
Two Dimensional ◽  
Large Area ◽  
Experimental Conditions ◽  
New Material ◽  
Nobel Prize In Physics

Write your name on a piece of paper with a pencil and you have just created the hottest new material in physics, namely graphene. Graphene is a single atomic layer of graphite arranged in a perfect network of repeating hexagons. It was discovered in 2004 by Andre Geim and Konstantin Novoselov, who received the 2010 Nobel prize in physics. Because of graphene’s unique two-dimensional nature, it has a variety of interesting properties. For example, graphene’s high crystal quality is the result of extremely flexible interatomic bonds, which create a substance stronger in plane than diamond yet allows planes to bend when a force is applied perpendicular to this plane. The current challenge in this area of study is to make uniform large area films of graphene. A promising method is chemical vapour deposition (CVD) on metal substrates, particularly copper (Cu). An apparatus for CVD of graphene was built and tested. Using a variety of different experimental conditions, the growth of graphene was investigated. Scanning electron microscopy was used as a preliminary diagnostic tool to determine the presence of graphene. The graphene was then transferred from Cu onto silicon dioxide in order to image the sample using optical and Raman spectroscopy. These methods both confirmed that graphene is present. Further work is being done to optimize the growth and transfer methods as well as to test some of graphene’s interesting electrical and mechanical properties.

scholarly journals A Review on Chemical Vapour Deposition of Two-Dimensional MoS2 Flakes

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7590
Author(s):  
Luca Seravalli ◽  
Matteo Bosi
Keyword(s):  
Transition Metal ◽  
Chemical Vapour Deposition ◽  
Vapour Deposition ◽  
2D Materials ◽  
Transition Metal Dichalcogenides ◽  
Chemical Vapour ◽  
Two Dimensional ◽  
Large Area ◽  
Reliable Technique ◽  
Metal Dichalcogenides

Two-dimensional (2D) materials such as graphene, transition metal dichalcogenides, and boron nitride have recently emerged as promising candidates for novel applications in sensing and for new electronic and photonic devices. Their exceptional mechanical, electronic, optical, and transport properties show peculiar differences from those of their bulk counterparts and may allow for future radical innovation breakthroughs in different applications. Control and reproducibility of synthesis are two essential, key factors required to drive the development of 2D materials, because their industrial application is directly linked to the development of a high-throughput and reliable technique to obtain 2D layers of different materials on large area substrates. Among various methods, chemical vapour deposition is considered an excellent candidate for this goal thanks to its simplicity, widespread use, and compatibility with other processes used to deposit other semiconductors. In this review, we explore the chemical vapour deposition of MoS2, considered one of the most promising and successful transition metal dichalcogenides. We summarize the basics of the synthesis procedure, discussing in depth: (i) the different substrates used for its deposition, (ii) precursors (solid, liquid, gaseous) available, and (iii) different types of promoters that favour the growth of two-dimensional layers. We also present a comprehensive analysis of the status of the research on the growth mechanisms of the flakes.

Thermodynamical and experimental conditions of hafnium carbide chemical vapour deposition

1999 ◽  
Vol 09 (PR8) ◽  
pp. Pr8-373-Pr8-380 ◽  
Author(s):  
P. Sourdiaucourt ◽  
A. Derré ◽  
P. Delhaès ◽  
P. David
Keyword(s):  
Chemical Vapour Deposition ◽  
Vapour Deposition ◽  
Chemical Vapour ◽  
Hafnium Carbide ◽  
Experimental Conditions

scholarly journals Structural and Optical Properties of Luminescent Copper(I) Chloride Thin Films Deposited by Sequentially Pulsed Chemical Vapour Deposition

Coatings ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 369 ◽  
Author(s):  
Richard Krumpolec ◽  
Tomáš Homola ◽  
David Cameron ◽  
Josef Humlíček ◽  
Ondřej Caha ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Chemical Vapour Deposition ◽  
Photoelectron Spectroscopy ◽  
Vapour Deposition ◽  
Chemical Vapour ◽  
Atomic Layer ◽  
Nanocrystalline Films ◽  
Zinc Blende ◽  
Layer Deposition

Sequentially pulsed chemical vapour deposition was used to successfully deposit thin nanocrystalline films of copper(I) chloride using an atomic layer deposition system in order to investigate their application to UV optoelectronics. The films were deposited at 125 °C using [Bis(trimethylsilyl)acetylene](hexafluoroacetylacetonato)copper(I) as a Cu precursor and pyridine hydrochloride as a new Cl precursor. The films were analysed by XRD, X-ray photoelectron spectroscopy (XPS), SEM, photoluminescence, and spectroscopic reflectance. Capping layers of aluminium oxide were deposited in situ by ALD (atomic layer deposition) to avoid environmental degradation. The film adopted a polycrystalline zinc blende-structure. The main contaminants were found to be organic materials from the precursor. Photoluminescence showed the characteristic free and bound exciton emissions from CuCl and the characteristic exciton absorption peaks could also be detected by reflectance measurements.

Recent progress in the tailored growth of two-dimensional hexagonal boron nitride via chemical vapour deposition

2018 ◽  
Vol 47 (12) ◽  
pp. 4242-4257 ◽  
Author(s):  
Jingyu Sun ◽  
Chen Lu ◽  
Yingze Song ◽  
Qingqing Ji ◽  
Xiuju Song ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Chemical Vapour Deposition ◽  
Recent Progress ◽  
Vapour Deposition ◽  
State Of The Art ◽  
Hexagonal Boron Nitride ◽  
Chemical Vapour ◽  
The State ◽  
Two Dimensional

A tutorial review of the state-of-the-art in the tailored growth of two-dimensional h-BN by virtue of CVD routes.

Sign in / Sign up

Export Citation Format

Share Document