Mechanical properties of irradiated single-layer graphene

2013 ◽  
Vol 103 (1) ◽  
pp. 013102 ◽  
Author(s):  
Corinne Carpenter ◽  
Dimitrios Maroudas ◽  
Ashwin Ramasubramaniam
Keyword(s):  
Mechanical Properties ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene

Single sheets of graphene for fabrication of fibers with enhanced mechanical properties

2021 ◽  
Author(s):  
Muhammad G. Salim ◽  
Luke A. Thimons ◽  
Min A. Kim ◽  
Brennan Carr ◽  
Michelle Montgomery ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Single Layer ◽  
Chemical Vapor ◽  
Single Layer Graphene ◽  
Layer Graphene ◽  
Single Sheet ◽  
Graphene Fibers

This paper reports the fabrication and mechanical properties of macroscale graphene fibers (diameters of 10 to 100 μm with lengths upwards of 2 cm) prepared from a single sheet of single-layer graphene grown via chemical vapor deposition (CVD).

scholarly journals Mechanical properties of single layer graphene nanoribbons through bending experimental simulations

AIP Advances ◽  
2014 ◽  
Vol 4 (3) ◽  
pp. 031333 ◽  
Author(s):  
Weidong Wang ◽  
Cuili Shen ◽  
Shuai Li ◽  
Jiaojiao Min ◽  
Chenglong Yi
Keyword(s):  
Mechanical Properties ◽  
Graphene Nanoribbons ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene

Effective elastic mechanical properties of single layer graphene sheets

2009 ◽  
Vol 20 (6) ◽  
pp. 065709 ◽  
Author(s):  
F Scarpa ◽  
S Adhikari ◽  
A Srikantha Phani
Keyword(s):  
Mechanical Properties ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Graphene Sheets ◽  
Layer Graphene

Comparative study of electron transfer on various graphene-metallic contacts

2019 ◽  
Vol 33 (31) ◽  
pp. 1950384
Author(s):  
Di Lu ◽  
Yu-E Yang ◽  
Weichun Zhang ◽  
Caixia Wang ◽  
Jining Fang ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Single Layer ◽  
Annealing Treatment ◽  
Single Layer Graphene ◽  
Strain Effect ◽  
Graphene Surface ◽  
Layer Graphene ◽  
Metallic Contacts ◽  
Nonuniform Strain ◽  
Main Factor

We have investigated Raman spectra of the G and 2D lines of a single-layer graphene (SLG) with metallic contacts. The shift of the G and 2D lines is correlated to two different factors. Before performing annealing treatment or annealing under low temperature, the electron transfer on graphene surface is dominated by nonuniform strain effect. As the annealing treatment is enhanced, however, a suitable annealing treatment can eliminate the nonuniform strain effect where the relative work function (WF) between graphene and metal becomes a main factor to determine electronic transfer. Moreover, it is confirmed that the optimized annealing treatment can also decrease effectively the structural defect and induced disorder in graphene due to metallic contacts.

scholarly journals Millisecond lattice gasification for high-density CO2- and O2-sieving nanopores in single-layer graphene

2021 ◽  
Vol 7 (9) ◽  
pp. eabf0116
Author(s):  
Shiqi Huang ◽  
Shaoxian Li ◽  
Luis Francisco Villalobos ◽  
Mostapha Dakhchoune ◽  
Marina Micari ◽  
...  
Keyword(s):  
Single Layer ◽  
High Density ◽  
Single Layer Graphene ◽  
Pore Density ◽  
Vacancy Defects ◽  
Carbon Gasification ◽  
Layer Graphene ◽  
Gas Molecules ◽  
Good Agreement

Etching single-layer graphene to incorporate a high pore density with sub-angstrom precision in molecular differentiation is critical to realize the promising high-flux separation of similar-sized gas molecules, e.g., CO2 from N2. However, rapid etching kinetics needed to achieve the high pore density is challenging to control for such precision. Here, we report a millisecond carbon gasification chemistry incorporating high density (>1012 cm−2) of functional oxygen clusters that then evolve in CO2-sieving vacancy defects under controlled and predictable gasification conditions. A statistical distribution of nanopore lattice isomers is observed, in good agreement with the theoretical solution to the isomer cataloging problem. The gasification technique is scalable, and a centimeter-scale membrane is demonstrated. Last, molecular cutoff could be adjusted by 0.1 Å by in situ expansion of the vacancy defects in an O2 atmosphere. Large CO2 and O2 permeances (>10,000 and 1000 GPU, respectively) are demonstrated accompanying attractive CO2/N2 and O2/N2 selectivities.

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