Self-Assembled, Ultrahigh Refractive Index Pseudo-Periodic Sn Nanostructures for Broad-Band Infrared Photon Management in Single Layer Graphene

ACS Photonics ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 50-58 ◽  
Author(s):  
Sidan Fu ◽  
Haozhe Wang ◽  
Xiaoxin Wang ◽  
Yi Song ◽  
Jing Kong ◽  
...  
Keyword(s):  
Refractive Index ◽  
Broad Band ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene ◽  
Photon Management ◽  
Infrared Photon ◽  
Self Assembled

Charge Transfer and Current Fluctuations in Single Layer Graphene Transistors Modified by Self-Assembled C60Adlayers

Small ◽  
2013 ◽  
Vol 9 (14) ◽  
pp. 2420-2426 ◽  
Author(s):  
Rui Wang ◽  
Shengnan Wang ◽  
Xiaowei Wang ◽  
Jakob A. S. Meyer ◽  
Per Hedegård ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Current Fluctuations ◽  
Layer Graphene ◽  
Self Assembled

Transistors: Charge Transfer and Current Fluctuations in Single Layer Graphene Transistors Modified by Self-Assembled C60 Adlayers (Small 14/2013)

Small ◽  
2013 ◽  
Vol 9 (14) ◽  
pp. 2373-2373 ◽  
Author(s):  
Rui Wang ◽  
Shengnan Wang ◽  
Xiaowei Wang ◽  
Jakob A. S. Meyer ◽  
Per Hedegård ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Current Fluctuations ◽  
Layer Graphene ◽  
Self Assembled

Infrared spectroscopy of large scale single layer graphene on self assembled organic monolayer

2014 ◽  
Vol 104 (4) ◽  
pp. 041904 ◽  
Author(s):  
Nak Woo Kim ◽  
Joo Youn Kim ◽  
Chul Lee ◽  
Sang Jin Kim ◽  
Byung Hee Hong ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Large Scale ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Organic Monolayer ◽  
Layer Graphene ◽  
Self Assembled

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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