Two-dimensional germanane and germanane ribbons: density functional calculation of structural, electronic, optical and transport properties and the role of defects

RSC Advances ◽  
2016 ◽  
Vol 6 (34) ◽  
pp. 28298-28307 ◽  
Author(s):  
Jun Zhao ◽  
Hui Zeng
Keyword(s):  
Transport Properties ◽  
Green's Function ◽  
First Principles ◽  
Density Functional ◽  
Two Dimensional ◽  
First Principles Calculations ◽  
Density Functional Calculation ◽  
Non Equilibrium Green’S Function ◽  
Non Equilibrium

We have performed first principles calculations combined with non-equilibrium Green’s function to study the structural, electronic, optical and transport properties of two-dimensional germanane and germanane ribbons.

scholarly journals Electronic and transport properties of zigzag phosphorene nanoribbons with nonmetallic atom terminations

RSC Advances ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 1400-1409 ◽  
Author(s):  
L. Sun ◽  
Z. H. Zhang ◽  
H. Wang ◽  
M. Li
Keyword(s):  
Density Functional Theory ◽  
Transport Properties ◽  
Electronic Properties ◽  
Green's Function ◽  
First Principles ◽  
Density Functional ◽  
Functional Theory ◽  
Non Equilibrium Green’S Function ◽  
Non Equilibrium ◽  
First Principles Method

Using the first-principles method based on density-functional theory and non-equilibrium Green's function, the electronic properties of zigzag ZPNRs terminated with NM atoms, as well as a pristine case, were studied systematically.

Multifunctional heterostructures constructed using MoS2 and WS2 nanoribbons

2016 ◽  
Vol 18 (39) ◽  
pp. 27468-27475 ◽  
Author(s):  
Yi Zhou ◽  
Jichen Dong ◽  
Hui Li
Keyword(s):  
Density Functional Theory ◽  
Transport Properties ◽  
Green's Function ◽  
Electronic Transport ◽  
First Principles ◽  
Density Functional ◽  
First Principles Calculations ◽  
Functional Theory ◽  
Electronic Transport Properties ◽  
Nonequilibrium Green's Function

Using first-principles calculations based on nonequilibrium Green's function together with density functional theory, we investigated the electronic transport properties of some devices consisting of armchair and zigzag MoS2NRs/WS2NRs in-plane heterostructures.

Thermoelectric properties of fullerene-based junctions: a first-principles study

2016 ◽  
Vol 18 (40) ◽  
pp. 28117-28124 ◽  
Author(s):  
Rui-Ning Wang ◽  
Guo-Yi Dong ◽  
Shu-Fang Wang ◽  
Guang-Sheng Fu ◽  
Jiang-Long Wang
Keyword(s):  
Thermoelectric Properties ◽  
Green's Function ◽  
First Principles ◽  
Density Functional Calculations ◽  
Density Functional ◽  
Transport Mechanisms ◽  
Thermoelectric Transport ◽  
First Principles Study ◽  
Non Equilibrium Green’S Function ◽  
Non Equilibrium

This study is built on density functional calculations in combination with the non-equilibrium Green's function, and we probe the thermoelectric transport mechanisms through C60molecules anchored to Al nano-electrodes in three different ways, such as, the planar, pyramidal, and asymmetric surfaces.

Electronic and transport properties of PSi@MoS2 nanocables

2016 ◽  
Vol 18 (6) ◽  
pp. 4333-4344
Author(s):  
Cuicui Sun ◽  
Guiling Zhang ◽  
Yan Shang ◽  
Zhao-Di Yang ◽  
Xiaojun Sun
Keyword(s):  
Density Functional Theory ◽  
Green’S Function ◽  
Transport Properties ◽  
Green's Function ◽  
Electronic Structures ◽  
Density Functional ◽  
Functional Theory ◽  
The Density Functional Theory ◽  
Non Equilibrium Green’S Function ◽  
Non Equilibrium

Electronic structures and transport properties of prototype MoS2 nanotube (15, 0) nanocables, including undoped PSi@MoS2 and B- and P-doped PSi@MoS2 (where PSi refers to polysilane), are investigated using the density functional theory (DFT) and the non-equilibrium Green's function (NEGF) methods.

Spin-resolved transport properties in zigzag α-graphyne nanoribbons with symmetric and asymmetric edge fluorinations

RSC Advances ◽  
2016 ◽  
Vol 6 (18) ◽  
pp. 15008-15015 ◽  
Author(s):  
Dan Zhang ◽  
Mengqiu Long ◽  
Xiaojiao Zhang ◽  
Jun Ouyang ◽  
Hui Xu ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Transport Properties ◽  
Green's Function ◽  
Density Functional ◽  
Function Method ◽  
Functional Theory ◽  
Spin Polarized ◽  
The Stability ◽  
Non Equilibrium Green’S Function ◽  
Non Equilibrium

Using the non-equilibrium Green's function method and spin-polarized density functional theory, we investigate the stability and spin-resolved transport properties of zigzag α-graphyne nanoribbons with symmetric and asymmetric edge fluorinations.

scholarly journals Hydrogenation and oxidation enhances the thermoelectric performance of Si2BN monolayer

2021 ◽  
Author(s):  
H. R. Mahida ◽  
Deobrat Singh ◽  
Yogesh Sonvane ◽  
Sanjeev K. Gupta ◽  
P. B. Thakor ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Charge Transport ◽  
Transport Properties ◽  
First Principles ◽  
Density Functional ◽  
Thermoelectric Performance ◽  
First Principles Calculations ◽  
Functional Theory

In the present study, we have investigated the structural, electronic, and charge transport properties of pristine, hydrogenated, and oxidized Si2BN monolayers via first-principles calculations based on density functional theory (DFT).

scholarly journals Giant magnetoresistance and spin Seebeck coefficient in zigzag α-graphyne nanoribbons

Nanoscale ◽  
2014 ◽  
Vol 6 (19) ◽  
pp. 11121-11129 ◽  
Author(s):  
Ming-Xing Zhai ◽  
Xue-Feng Wang ◽  
P. Vasilopoulos ◽  
Yu-Shen Liu ◽  
Yao-Jun Dong ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Seebeck Coefficient ◽  
Thermoelectric Properties ◽  
Green's Function ◽  
Density Functional ◽  
Function Method ◽  
Giant Magnetoresistance ◽  
Functional Theory ◽  
Non Equilibrium Green’S Function ◽  
Non Equilibrium

We investigate the spin-dependent electric and thermoelectric properties of ferromagnetic zigzag α-graphyne nanoribbons (ZαGNRs) using density-functional theory combined with non-equilibrium Green's function method.

Electronic Structure and Hydrogen Desorption in NaAlH4

2004 ◽  
Vol 837 ◽  
Author(s):  
S. Li ◽  
P. Jena ◽  
C. M. Araujo ◽  
R. Ahuja
Keyword(s):  
Electronic Structure ◽  
First Principles ◽  
Density Functional ◽  
Metal Hydrides ◽  
Hydrogen Desorption ◽  
Light Metal ◽  
First Principles Calculations ◽  
Functional Theory ◽  
Design And Synthesis

ABSTRACTFirst principles calculations based on gradient corrected density functional theory are carried out to understand the electronic structure and mechanisms responsible for desorption of hydrogen from Ti doped and vacancy containing sodium-alanate (NaAlH4). The energy necessary to remove a hydrogen atom from Ti doped NaAlH4 is significantly smaller than that from pristine NaAlH4 irrespective of whether Ti substitutes the Na or the Al site. However, the presence of Na and Al vacancies is shown to play an even more important role: The removal of hydrogen associated with both Na and Al vacancies is found to be exothermic. It is suggested that this role of vacancies can be exploited in the design and synthesis of complex light metal hydrides suitable for hydrogen storage.

Bias-dependent transport properties of passivated tilted black phosphorene nanoribbons

2018 ◽  
Vol 20 (16) ◽  
pp. 11021-11027 ◽  
Author(s):  
Fazle Subhan ◽  
M. Umar Farooq ◽  
Jisang Hong
Keyword(s):  
Green’S Function ◽  
Transport Properties ◽  
Green's Function ◽  
Black Phosphorene ◽  
Dependent Transport ◽  
Non Equilibrium Green’S Function ◽  
Non Equilibrium

To explore the transport properties of the passivated TPNRs, using the non-equilibrium Green's function (NEGF) technique under the DFT code.

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