Theoretical insights on the electro-thermal transport properties of monolayer MoS2with line defects

2016 ◽  
Vol 119 (13) ◽  
pp. 134304 ◽  
Author(s):  
Dipankar Saha ◽  
Santanu Mahapatra
Keyword(s):  
Transport Properties ◽  
Thermal Transport ◽  
Thermal Transport Properties ◽  
Line Defects

scholarly journals Effects of Divacancy and Extended Line Defects on the Thermal Transport Properties of Graphene Nanoribbons

Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1609 ◽  
Author(s):  
Min Luo ◽  
Bo-Lin Li ◽  
Dengfeng Li
Keyword(s):  
Transport Properties ◽  
Thermal Transport ◽  
Phonon Scattering ◽  
Graphene Nanoribbons ◽  
Thermal Conductance ◽  
Low Frequency ◽  
Impurity Scattering ◽  
Low Frequencies ◽  
Thermal Transport Properties ◽  
Line Defects

The effects of divacancy, including isolated defects and extended line defects (ELD), on the thermal transport properties of graphene nanoribbons (GNRs) are investigated using the Nonequilibrium Green’s function method. Different divacancy defects can effectively tune the thermal transport of GNRs and the thermal conductance is significantly reduced. The phonon scattering of a single divacancy is mostly at high frequencies while the phonon scattering at low frequencies is also strong for randomly distributed multiple divacancies. The collective effect of impurity scattering and boundary scattering is discussed, which makes the defect scattering vary with the boundary condition. The effect on thermal transport properties of a divacancy is also shown to be closely related to the cross section of the defect, the internal structure and the bonding strength inside the defect. Both low frequency and high frequency phonons are scattered by 48, d5d7 and t5t7 ELD. However, the 585 ELD has almost no influence on phonon scattering at low frequency region, resulting in the thermal conductance of GNRs with 585 ELD being 50% higher than that of randomly distributed 585 defects. All these results are valuable for the design and manufacture of graphene nanodevices.

DOPING EFFECTS ON THERMAL TRANSPORT PROPERTIES OF PEDOT

2018 ◽  
Author(s):  
Xiaoxiang Yu ◽  
Ruiyang Li ◽  
Takuma Shiga ◽  
Lei Feng ◽  
Junichiro Shiomi ◽  
...  
Keyword(s):  
Transport Properties ◽  
Thermal Transport ◽  
Thermal Transport Properties ◽  
Doping Effects

Effects of spin-phonon coupling on two-dimensional ferromagnetic semiconductors: a case study of iron and ruthenium trihalides

Nanoscale ◽  
2021 ◽  
Author(s):  
Yinqiao Liu ◽  
Qinxi Liu ◽  
Ying Liu ◽  
Xue Jiang ◽  
Xiaoliang Zhang ◽  
...  
Keyword(s):  
Transport Properties ◽  
Data Security ◽  
Thermal Transport ◽  
Magnetic Semiconductors ◽  
Ferromagnetic Semiconductors ◽  
Two Dimensional ◽  
Phonon Coupling ◽  
Thermal Transport Properties

The contributions of spin-phonon coupling (SPC) to spin and thermal transport properties are important in the emerging two-dimensional (2D) magnetic semiconductors and are relevant for the data security and working...

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