Surface-Confined Single-Layer Covalent Organic Framework on Single-Layer Graphene Grown on Copper Foil

2014 ◽  
Vol 53 (36) ◽  
pp. 9564-9568 ◽  
Author(s):  
Lirong Xu ◽  
Xin Zhou ◽  
Wei Quan Tian ◽  
Teng Gao ◽  
Yan Feng Zhang ◽  
...  
2014 ◽  
Vol 126 (36) ◽  
pp. 9718-9722 ◽  
Author(s):  
Lirong Xu ◽  
Xin Zhou ◽  
Wei Quan Tian ◽  
Teng Gao ◽  
Yan Feng Zhang ◽  
...  

Science ◽  
2011 ◽  
Vol 332 (6026) ◽  
pp. 228-231 ◽  
Author(s):  
J. W. Colson ◽  
A. R. Woll ◽  
A. Mukherjee ◽  
M. P. Levendorf ◽  
E. L. Spitler ◽  
...  

2020 ◽  
Vol 4 (1) ◽  
pp. 14
Author(s):  
Ivan Kondrashov ◽  
Maxim Komlenok ◽  
Pavel Pivovarov ◽  
Sergei Savin ◽  
Elena Obraztsova ◽  
...  

Chemical vapor deposition synthesis of graphene on copper foil from methane is the most promising technology for industrial production. However, an important problem of the formation of the second and subsequent graphene layers during synthesis arises due to the strong roughness of the initial copper foil. Here we demonstrate the various approaches to prepare a smooth copper surface before graphene synthesis to reduce the formation of multi-layer graphene islands. Six methods of surface processing of copper foils are studied, and the decrease of the roughness from 250 to as low as 80 nm is achieved. The correlation between roughness and the formation of multi-layer graphene is demonstrated. Under optimized conditions of surface treatment, the content of the multi-layer graphene islands drops from 9% to 2.1%. The quality and the number of layers of synthesized graphene are analyzed by Raman spectroscopy, scanning electron microscopy, and measurements of charge mobility.


Nanoscale ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 5094-5101 ◽  
Author(s):  
Nicolas Reckinger ◽  
Marcello Casa ◽  
Jeroen E. Scheerder ◽  
Wout Keijers ◽  
Matthieu Paillet ◽  
...  

Backside tungsten coating of copper foils allows for the chemical vapor deposition of exclusively single-layer graphene sheets.


Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1071
Author(s):  
Ivan Kondrashov ◽  
Maxim Komlenok ◽  
Pavel Pivovarov ◽  
Sergey Savin ◽  
Elena Obraztsova ◽  
...  

Chemical vapor deposition synthesis of graphene on copper foil from methane is the most promising technology for industrial production. However, an important problem of the formation of the additional graphene layers during synthesis arises due to the strong roughness of the initial copper foil. In this paper, various approaches are demonstrated to form a smooth copper surface before graphene synthesis to reduce the amount of few layer graphene islands. Six methods of surface processing of copper foils are studied and the decrease of the roughness from 250 to as low as 80 nm is achieved. The correlation between foil roughness and the formation of the additional layer is demonstrated. Under optimized conditions of surface treatment, the content of the additional graphene layer drops from 9 to 2.1%. The quality and the number of layers of synthesized graphene are analyzed by Raman spectroscopy, scanning electron microscopy and measurements of charge mobility.


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