scholarly journals Enhanced thermoelectric properties of armchair graphene nanoribbons with defects and magnetic field

AIP Advances ◽  
2011 ◽  
Vol 1 (4) ◽  
pp. 042135 ◽  
Author(s):  
W. Zhao ◽  
Z. X. Guo ◽  
J. X. Cao ◽  
J. W. Ding
Keyword(s):  
Magnetic Field ◽  
Thermoelectric Properties ◽  
Graphene Nanoribbons ◽  
Armchair Graphene Nanoribbons ◽  
Armchair Graphene

Spin gapless armchair graphene nanoribbons under magnetic field and uniaxial strain

2013 ◽  
Vol 22 (8) ◽  
pp. 087303
Author(s):  
Hai-Ping Hou ◽  
Yue-E Xie ◽  
Yuan-Ping Chen ◽  
Tao Ouyang ◽  
Qing-Xia Ge ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Graphene Nanoribbons ◽  
Uniaxial Strain ◽  
Armchair Graphene Nanoribbons ◽  
Armchair Graphene

scholarly journals Enhanced Thermoelectric Properties of Armchair Graphene Nanoribbons with Pore Passivation

2018 ◽  
Vol 7 (2) ◽  
pp. 149-153
Author(s):  
Sukhdeep Kaur ◽  
Deep Kamal Kaur Randhawa ◽  
Sukhleen Bindra Narang
Keyword(s):  
Thermoelectric Properties ◽  
Waste Heat ◽  
Graphene Nanoribbons ◽  
Ballistic Transport ◽  
Thermoelectric Efficiency ◽  
Hydrogen Atoms ◽  
Armchair Graphene Nanoribbons ◽  
Semi Empirical ◽  
Thermoelectric Parameters ◽  
Armchair Graphene

There is a need to discover efficient thermoelectric materials that can generate electricity from waste heat and could play an important role in a global sustainable energy solution. Graphene Nanoribbons have been explored for a range of pore dimensions in order to achieve better thermoelectric performance. In this paper, we investigate the thermoelectric properties of porous armchair graphene nanoribbons by introducing hydrogen atoms as passivators at the pore surfaces. The aim of this work is to study the influence of pore passivation on the thermoelectric parameters as a function of pore geometry so as to open the possibility for an optimal pore engineering which can significantly improve the thermoelectric efficiency. The results show that the phonon thermal conductivity has a very little dependence on the pore edge passivation. An improvement in thermoelectric figure of merit is achieved due to the increased values of the power factor with consistent values of thermalconductivity. The unique thermoelectric properties of graphene nanoribbons with pore passivation suggest their great potentials for nanoscale thermoelectric applications. Within ballistic transport regime, semi-empirical extended Huckel method has been used for electrical properties while Tersoff potential has been employed for phononic calculations.

Family-dependent magnetism in atomic boron adsorbed armchair graphene nanoribbons

2019 ◽  
Vol 7 (21) ◽  
pp. 6241-6245 ◽  
Author(s):  
Wei-Wei Yan ◽  
Xiao-Fei Li ◽  
Xiang-Hua Zhang ◽  
Xinrui Cao ◽  
Mingsen Deng
Keyword(s):  
Fermi Level ◽  
Graphene Nanoribbons ◽  
Spin Splitting ◽  
Localized State ◽  
The Family ◽  
Armchair Graphene Nanoribbons ◽  
Armchair Graphene ◽  
Boron Adsorption

Boron adsorption induces a heavily localized state right at the Fermi level only in the family of W = 3p + 1 and thus spin-splitting occurs spontaneously.

Oxygen-promoted synthesis of armchair graphene nanoribbons on Cu(111)

2021 ◽  
Author(s):  
Penghui Ji ◽  
Oliver MacLean ◽  
Gianluca Galeotti ◽  
Dominik Dettmann ◽  
Giulia Berti ◽  
...  
Keyword(s):  
Graphene Nanoribbons ◽  
Armchair Graphene Nanoribbons ◽  
Armchair Graphene

scholarly journals Intrinsic properties of bipolarons in armchair graphene nanoribbons

2021 ◽  
Vol 769 ◽  
pp. 138387
Author(s):  
Gesiel G. Silva ◽  
Wiliam F. da Cunha ◽  
Marcelo L. Pereira Júnior ◽  
Luiz F. Roncaratti ◽  
Luiz A. Ribeiro
Keyword(s):  
Graphene Nanoribbons ◽  
Intrinsic Properties ◽  
Armchair Graphene Nanoribbons ◽  
Armchair Graphene
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