scholarly journals Decreasing graphene synthesis temperature by catalytic metal engineering and thermal processing

RSC Advances ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 1477-1480
Author(s):  
Li Zheng ◽  
Xinhong Cheng ◽  
Peiyi Ye ◽  
Lingyan Shen ◽  
Qian Wang ◽  
...  
Keyword(s):  
Growth Temperature ◽  
Thermal Processing ◽  
Synthesis Temperature ◽  
Graphene Growth ◽  
Cvd Graphene ◽  
Graphene Synthesis ◽  
Catalytic Metal

The CVD graphene growth temperature can be lowered to 700 °C by copper engineering with carbon implantation.

scholarly journals Highly uniform monolayer graphene synthesis via a facile pretreatment of copper catalyst substrates using an ammonium persulfate solution

RSC Advances ◽  
2019 ◽  
Vol 9 (36) ◽  
pp. 20871-20878 ◽  
Author(s):  
Hyunhak Jeong ◽  
Wang-Taek Hwang ◽  
Younggul Song ◽  
Jae-Keun Kim ◽  
Youngrok Kim ◽  
...  
Keyword(s):  
Copper Catalyst ◽  
Ammonium Persulfate ◽  
Monolayer Graphene ◽  
Large Area ◽  
Graphene Growth ◽  
Cvd Graphene ◽  
Graphene Synthesis ◽  
Highly Uniform

A facile method for preparing a pretreated copper catalyst substrate for highly uniform, large-area CVD graphene growth is proposed.

Effect of growth temperature and precursor concentration on synthesis of CVD-graphene from camphor

2018 ◽  
Author(s):  
Narasimman Rajaram ◽  
Biren Patel ◽  
Abhijit Ray ◽  
Indrajit Mukhopadhyay
Keyword(s):  
Growth Temperature ◽  
Precursor Concentration ◽  
Cvd Graphene

CVD graphene growth on a surface of liquid gallium

2017 ◽  
Vol 4 (3) ◽  
pp. 4548-4554 ◽  
Author(s):  
A. Mukanova ◽  
R. Tussupbayev ◽  
A. Sabitov ◽  
I. Bondarenko ◽  
R. Nemkaeva ◽  
...  
Keyword(s):  
Liquid Gallium ◽  
Graphene Growth ◽  
Cvd Graphene

Nucleation site in CVD graphene growth investigated by radiation-mode optical microscopy

2017 ◽  
Vol 10 (5) ◽  
pp. 055502 ◽  
Author(s):  
Takanobu Taira ◽  
Seiji Obata ◽  
Koichiro Saiki
Keyword(s):  
Optical Microscopy ◽  
Nucleation Site ◽  
Radiation Mode ◽  
Graphene Growth ◽  
Cvd Graphene

scholarly journals Influence of the Total Gas Flow at Different Reaction Times for CVD-Graphene Synthesis on Polycrystalline Nickel

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
M. P. Lavin-Lopez ◽  
J. L. Valverde ◽  
L. Sanchez-Silva ◽  
A. Romero
Keyword(s):  
Reaction Time ◽  
Gas Flow ◽  
Reaction Times ◽  
Monolayer Graphene ◽  
Graphene Monolayer ◽  
Multilayer Graphene ◽  
Reaction Step ◽  
Polycrystalline Nickel ◽  
Cvd Graphene ◽  
Graphene Synthesis

Optimization of the total gas flow (CH4+H2) during the reaction step for different reaction times for CVD-graphene synthesis on polycrystalline nickel foil using an atmospheric pressure set-up is reported. Athickness valuerelated to number of graphene layers in each of the synthesized samples was determined using an Excel-VBA application. This method assigned athickness valuebetween 1 and 1000 and provided information on the percentage of each type of graphene (monolayer, bilayer, and multilayer) deposited onto the polycrystalline nickel sheet. The influence of the total gas flow during the reaction step and the reaction time was studied in detail. Optical microscopy showed that samples were covered with different types of graphene, such as multilayer, few-layer, bilayer, and monolayer graphene. The synthesis variables were optimized according to thethickness valueand the results were verified by Raman spectroscopy. The best conditions were obtained with a reaction temperature of 980°C, a CH4/H2flow rate ratio of 0.07 v/v, a reaction time of 1 minute, and a total gas flow of 80 NmL/min. In the sample obtained under the optimized conditions, 80% of the area was covered with monolayer graphene and less than 1% with multilayer graphene.

Metal-Free CVD Graphene Synthesis on 200 mm Ge/Si(001) Substrates

2016 ◽  
Vol 8 (49) ◽  
pp. 33786-33793 ◽  
Author(s):  
M. Lukosius ◽  
J. Dabrowski ◽  
J. Kitzmann ◽  
O. Fursenko ◽  
F. Akhtar ◽  
...  
Keyword(s):  
Cvd Graphene ◽  
Metal Free ◽  
Graphene Synthesis

Undulate Cu(111) Substrates: A Unique Surface for CVD Graphene Growth

2015 ◽  
Vol 44 (10) ◽  
pp. 3550-3555 ◽  
Author(s):  
Yaqian Zhang ◽  
Haoran Zhang ◽  
Yanhui Zhang ◽  
Zhiying Chen ◽  
Chunmiao Tang ◽  
...  
Keyword(s):  
Graphene Growth ◽  
Cvd Graphene ◽  
Unique Surface

scholarly journals CVD-graphene growth on different polycrystalline transition metals

2017 ◽  
Vol 4 (1) ◽  
pp. 194-208 ◽  
Author(s):  
M. P. Lavin-Lopez ◽  
◽  
L. Sanchez-Silva ◽  
J. L. Valverde ◽  
A. Romero
Keyword(s):  
Transition Metals ◽  
Graphene Growth ◽  
Cvd Graphene

The effect of catalytic copper pretreatments on CVD graphene growth at different stages

2020 ◽  
Vol 32 (9) ◽  
pp. 095607
Author(s):  
Na Li ◽  
Ru-Jing Zhang ◽  
Zhen Zhen ◽  
Zhen-Hua Xu ◽  
Ren-De Mu ◽  
...  
Keyword(s):  
Graphene Growth ◽  
Cvd Graphene
Sign in / Sign up

Export Citation Format

Share Document