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.

Extremely permeable porous graphene with high H2/CO2 separation ability achieved by graphene surface rejection

2017 ◽  
Vol 19 (28) ◽  
pp. 18201-18207 ◽  
Author(s):  
K. Shimizu ◽  
T. Ohba
Keyword(s):  
High Selectivity ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Co2 Separation ◽  
Graphene Surface ◽  
Porous Graphene ◽  
Layer Graphene

Single-layer graphene exhibited higher permeance than double- and four-layer graphene with high selectivity.

Kinetics of Interfacial Electron Transfer at Single-Layer Graphene Electrodes in Aqueous and Nonaqueous Solutions

Langmuir ◽  
2013 ◽  
Vol 29 (5) ◽  
pp. 1683-1694 ◽  
Author(s):  
Nicole L. Ritzert ◽  
Joaquín Rodríguez-López ◽  
Cen Tan ◽  
Héctor D. Abruña
Keyword(s):  
Electron Transfer ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Interfacial Electron Transfer ◽  
Nonaqueous Solutions ◽  
Layer Graphene ◽  
Kinetics Of

Optimizing the interfacial electron transfer capability of single layer graphene by thermal annealing

2020 ◽  
Vol 56 (2) ◽  
pp. 253-256
Author(s):  
Xuan Liu ◽  
Matthew M. Sartin ◽  
Yunhua Liu ◽  
Zhong-Qun Tian ◽  
Dongping Zhan
Keyword(s):  
Electron Transfer ◽  
Thermal Annealing ◽  
Electronic Devices ◽  
Single Layer ◽  
Inert Gas ◽  
Single Layer Graphene ◽  
Interfacial Electron Transfer ◽  
Layer Graphene ◽  
Transfer Capability ◽  
Gas Environment

The interfacial electron transfer capability of Si/SiO2 wafer supported single layer graphene is optimized by thermal annealing in an inert gas environment, which facilitates its applications in both electrochemical and electronic devices.

Modulation of interfacial charge transfer by self-assembly of single-layer graphene enwrapped one-dimensional semiconductors toward photoredox catalysis

2017 ◽  
Vol 5 (45) ◽  
pp. 23681-23693 ◽  
Author(s):  
Junyu Zhang ◽  
Fang-Xing Xiao
Keyword(s):  
Electron Transfer ◽  
Self Assembly ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer By Layer ◽  
One Dimensional ◽  
Electron Transfer Pathway ◽  
Assembly Strategy ◽  
Layer Graphene ◽  
Interfacial Charge

A progressive layer-by-layer self-assembly strategy has been developed to construct a graphene-wrapped and WO3nanorods-coupled TiO2nanobelts photocatalyst, in which a highly efficient cascade electron transfer pathway was judiciously built.

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