Interactions between C and Cu atoms in single-layer graphene: direct observation and modelling

Nanoscale ◽  
2016 ◽  
Vol 8 (1) ◽  
pp. 529-535 ◽  
Author(s):  
Emi Kano ◽  
Ayako Hashimoto ◽  
Tomoaki Kaneko ◽  
Nobuo Tajima ◽  
Takahisa Ohno ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Direct Observation ◽  
Energy Barrier ◽  
Carbon Nanostructures ◽  
Morphological Changes ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene ◽  
Doped Graphene ◽  
Aberration Corrected

We directly observed unique morphological changes in Cu-doped graphene by aberration-corrected TEM. DFT calculations reveal a reduction of energy barrier that caused rotation of C–C bonds near Cu atoms. Our results suggest that individual Cu atoms can catalyse reconstruction of carbon nanostructures.

Direct Observation of Spatially Heterogeneous Single-Layer Graphene Oxide Reduction Kinetics

Nano Letters ◽  
2013 ◽  
Vol 13 (12) ◽  
pp. 5777-5784 ◽  
Author(s):  
Matthew P. McDonald ◽  
Ahmed Eltom ◽  
Felix Vietmeyer ◽  
Janak Thapa ◽  
Yurii V. Morozov ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Direct Observation ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Reduction Kinetics ◽  
Oxide Reduction ◽  
Layer Graphene

scholarly journals Direct observation of electrically induced Pauli paramagnetism in single-layer graphene using ESR spectroscopy

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Naohiro Fujita ◽  
Daisuke Matsumoto ◽  
Yuki Sakurai ◽  
Kenji Kawahara ◽  
Hiroki Ago ◽  
...  
Keyword(s):  
Direct Observation ◽  
Esr Spectroscopy ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene ◽  
Pauli Paramagnetism

scholarly journals High-performance deformable photoswitches with p-doped graphene as the top window electrode

2015 ◽  
Vol 3 (1) ◽  
pp. 37-40 ◽  
Author(s):  
Rongjin Li ◽  
Zhaoyang Liu ◽  
Khaled Parvez ◽  
Xinliang Feng ◽  
Klaus Müllen
Keyword(s):  
High Performance ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene ◽  
Doped Graphene

Deformable polymer photoswitches with p-doped single layer graphene as the top window electrode exhibit an on/off ratio as high as 8.5 × 105.

scholarly journals Semiconducting properties of perchlorate-doped graphene using an electrochemical method

RSC Advances ◽  
2017 ◽  
Vol 7 (27) ◽  
pp. 16823-16825 ◽  
Author(s):  
Chang-Soo Park ◽  
Dongil Chu ◽  
Yoon Shon ◽  
Eun Kyu Kim
Keyword(s):  
Band Gap ◽  
Electrochemical Method ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene ◽  
Semiconducting Properties ◽  
Gap Opening ◽  
Doped Graphene ◽  
P Type

We report a band gap opening and p-type doping for single layer graphene by an electrochemical method.

Direct Observation of Single Layer Graphene Oxide Reduction through Spatially Resolved, Single Sheet Absorption/Emission Microscopy

Nano Letters ◽  
2014 ◽  
Vol 14 (6) ◽  
pp. 3172-3179 ◽  
Author(s):  
Denis A. Sokolov ◽  
Yurii V. Morozov ◽  
Matthew P. McDonald ◽  
Felix Vietmeyer ◽  
Jose H. Hodak ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Direct Observation ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Oxide Reduction ◽  
Layer Graphene ◽  
Spatially Resolved ◽  
Single Sheet ◽  
Emission Microscopy

Simulation Study of Aberration-Corrected High-Resolution Transmission Electron Microscopy Imaging of Few-Layer-Graphene Stacking

2010 ◽  
Vol 16 (2) ◽  
pp. 194-199 ◽  
Author(s):  
Florence Nelson ◽  
Alain C. Diebold ◽  
Robert Hull
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Random Noise ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Microscopy Imaging ◽  
Layer Graphene ◽  
Transmission Electron ◽  
Aberration Corrected

AbstractGraphene is a single layer of carbon atoms arranged in a hexagonal lattice. The high carrier mobility and mechanical robustness of single layer graphene make it an attractive material for “beyond CMOS” devices. The current work investigates through high-resolution transmission electron microscopy (HRTEM) image simulation the sensitivity of aberration-corrected HRTEM to the different graphene stacking configurations AAA/ABA/ABC as well as bilayers with rotational misorientations between the individual layers. High-angle annular dark field–scanning transmission electron microscopy simulation is also explored. Images calculated using the multislice approximation show discernable differences between the stacking sequences when simulated with realistic operating parameters in the presence of low random noise.

scholarly journals Direct observation of an irradiance dependent nonlinear refraction in CVD single layer graphene

2021 ◽  
Vol 481 ◽  
pp. 126535
Author(s):  
G. Demetriou ◽  
F. Biancalana ◽  
E. Abraham ◽  
W. ji ◽  
Y. Wang ◽  
...  
Keyword(s):  
Direct Observation ◽  
Nonlinear Refraction ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene
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