scholarly journals Plasticized Polystyrene by Addition of -Diene Based Molecules for Defect-Less CVD Graphene Transfer

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1839
Author(s):  
Tuqeer Nasir ◽  
Bum Jun Kim ◽  
Muhammad Hassnain ◽  
Sang Hoon Lee ◽  
Byung Joo Jeong ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Polymer Film ◽  
Transfer Process ◽  
Vapor Deposition ◽  
Large Scale ◽  
Chemical Vapor ◽  
Polymer Support ◽  
Structural Support ◽  
Low Weight ◽  
Grown Graphene

Chemical vapor deposition of graphene on transition metals is the most favored method to get large scale homogenous graphene films to date. However, this method involves a very critical step of transferring as grown graphene to desired substrates. A sacrificial polymer film is used to provide mechanical and structural support to graphene, as it is detached from underlying metal substrate, but, the residue and cracks of the polymer film after the transfer process affects the properties of the graphene. Herein, a simple mixture of polystyrene and low weight plasticizing molecules is reported as a suitable candidate to be used as polymer support layer for transfer of graphene synthesized by chemical vapor deposition (CVD). This combination primarily improves the flexibility of the polystyrene to prevent cracking during the transfer process. In addition, the polymer removal solvent can easily penetrate between the softener molecules, so that the polymer film can be easily dissolved after transfer of graphene, thereby leaving no residue. This facile method can be used freely for the large-scale transfer of 2D materials.

scholarly journals Large scale structures in chemical vapor deposition-grown graphene on Ni thin films

2020 ◽  
Vol 709 ◽  
pp. 138225
Author(s):  
Derya Ataç ◽  
Johnny G.M. Sanderink ◽  
Sachin Kinge ◽  
Dirk J. Gravesteijn ◽  
Alexey Y. Kovalgin ◽  
...  
Keyword(s):  
Thin Films ◽  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Large Scale ◽  
Chemical Vapor ◽  
Large Scale Structures ◽  
Scale Structures ◽  
Grown Graphene

scholarly journals Establishment of a reliable transfer process for fabricating chemical vapor deposition-grown graphene films with advanced and repeatable electrical properties

RSC Advances ◽  
2018 ◽  
Vol 8 (35) ◽  
pp. 19846-19851 ◽  
Author(s):  
Dongyun Sun ◽  
Wei Wang ◽  
Zhaoping Liu
Keyword(s):  
Chemical Vapor Deposition ◽  
Electrical Properties ◽  
Transfer Process ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
High Quality ◽  
Cvd Method ◽  
Graphene Films ◽  
Grown Graphene ◽  
Commercial Applications

Graphene films grown by the chemical vapor deposition (CVD) method have attracted intensive attention due to their native advantages of both high quality and large quantity for commercial applications.

scholarly journals Chemical Vapor Deposition: An Eco‐Friendly, CMOS‐Compatible Transfer Process for Large‐Scale CVD‐Graphene (Adv. Mater. Interfaces 13/2019)

2019 ◽  
Vol 6 (13) ◽  
pp. 1970087
Author(s):  
Ji‐Yun Moon ◽  
Seung‐Il Kim ◽  
Seok‐Kyun Son ◽  
Seog‐Gyun Kang ◽  
Jae‐Young Lim ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Transfer Process ◽  
Vapor Deposition ◽  
Large Scale ◽  
Chemical Vapor ◽  
Cvd Graphene ◽  
Cmos Compatible

scholarly journals Thermal decomposition and chemical vapor deposition: a comparative study of multi-layer growth of graphene on SiC(000-1)

MRS Advances ◽  
2016 ◽  
Vol 1 (55) ◽  
pp. 3667-3672 ◽  
Author(s):  
D. Convertino ◽  
A. Rossi ◽  
V. Miseikis ◽  
V. Piazza ◽  
C. Coletti
Keyword(s):  
Thermal Decomposition ◽  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Large Scale ◽  
Chemical Vapor ◽  
Layer Growth ◽  
Force Microscopy ◽  
Layer Graphene ◽  
Atomic Force ◽  
Grown Graphene

ABSTRACTThis work presents a comparison of the structural, chemical and electronic properties of multi-layer graphene grown on SiC(000-1) by using two different growth approaches: thermal decomposition and chemical vapor deposition (CVD). The topography of the samples was investigated by using atomic force microscopy (AFM), and scanning electron microscopy (SEM) was performed to examine the sample on a large scale. Raman spectroscopy was used to assess the crystallinity and electronic behavior of the multi-layer graphene and to estimate its thickness in a non-invasive way. While the crystallinity of the samples obtained with the two different approaches is comparable, our results indicate that the CVD method allows for a better thickness control of the grown graphene.

Structure Controlled Synthesis of Vertically Aligned Carbon Nanotubes Using Thermal Chemical Vapor Deposition Process

2010 ◽  
Vol 133 (3) ◽  
Author(s):  
Myung Gwan Hahm ◽  
Young-Kyun Kwon ◽  
Ahmed Busnaina ◽  
Yung Joon Jung
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Large Scale ◽  
Chemical Vapor ◽  
Controlled Synthesis ◽  
Full Potential ◽  
Thermal Chemical Vapor Deposition ◽  
Vertically Aligned ◽  
Walled Carbon Nanotubes

Due to their unique one-dimensional nanostructure along with excellent mechanical, electrical, and optical properties, carbon nanotubes (CNTs) become a promising material for diverse nanotechnology applications. However, large-scale and structure controlled synthesis of CNTs still have many difficulties due to the lack of understanding of the fundamental growth mechanism of CNTs, as well as the difficulty of controlling atomic-scale physical and chemical reactions during the nanotube growth process. Especially, controlling the number of graphene wall, diameter, and chirality of CNTs are the most important issues that need to be solved to harness the full potential of CNTs. Here we report the large-scale selective synthesis of vertically aligned single walled carbon nanotubes (SWNTs) and double walled carbon nanotubes (DWNTs) by controlling the size of catalyst nanoparticles in the highly effective oxygen assisted thermal chemical vapor deposition (CVD) process. We also demonstrate a simple but powerful strategy for synthesizing ultrahigh density and diameter selected vertically aligned SWNTs through the precise control of carbon flow during a thermal CVD process.

Flexible and Transparent Dielectric Film with a High Dielectric Constant Using Chemical Vapor Deposition-Grown Graphene Interlayer

ACS Nano ◽  
2013 ◽  
Vol 8 (1) ◽  
pp. 269-274 ◽  
Author(s):  
Jin-Young Kim ◽  
Jongho Lee ◽  
Wi Hyoung Lee ◽  
Iskandar N. Kholmanov ◽  
Ji Won Suk ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
High Dielectric Constant ◽  
Dielectric Film ◽  
Chemical Vapor ◽  
Transparent Dielectric ◽  
Grown Graphene ◽  
High Dielectric

The Effects of Hydrogen Flowrate during Pre-Annealing on Graphene Growth by Chemical Vapor Deposition Using Methanol as a Liquid Carbon Precursor

2019 ◽  
Vol 290 ◽  
pp. 107-112
Author(s):  
Raed Abdalrheem ◽  
Fong Kwong Yam ◽  
Abdul Razak Ibrahim ◽  
Khi Poay Beh ◽  
Hwee San Lim ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Light Transmittance ◽  
High Hydrogen ◽  
Flow Rates ◽  
Hydrogen Flow ◽  
Number Of Layers ◽  
Crystallite Sizes ◽  
Grown Graphene

Studying an influence of several parameters on Chemical Vapor Deposition (CVD) used for graphene synthesis is crucial to optimizing the graphene quality to be Compatible with advanced devices. The effect of different hydrogen (H2) flow-rates (0, 50, 100, 150, 200, 250, and 300 sccm) during the pre-annealing process on CVD grown graphene have been reported. This study revealed that hydrogen flow rates during annealing changed the surface roughness/smoothness of the copper substrates. For high hydrogen flow rates, the smoothing effect was increased. Furthermore, the annealed graphene samples emerged a deferent number of layers because of morphological surface changes. According to Raman D- to G-band intensity ratios (ID/IG), the graphene quality was influenced by the annealing hydrogen flowrate. The visible light transmittance values of the grown graphene samples confirmed a few number of layers (mono to seven-layer). Mostly, the samples which annealed under moderate hydrogen flow rates showed less defects intensities and higher crystallite sizes.

Sign in / Sign up

Export Citation Format

Share Document