Tunable band gap and enhanced thermoelectric performance of tetragonal Germanene under bias voltage and chemical doping

R Chegel - Scientific Reports, 2023 - nature.com
This paper employs the tight-binding model to investigate the thermal properties of
tetragonal Germanene (T-Ge) affected by external fields and doping. T-Ge is a two …

Tunable electronic, optical, and thermal properties of two-dimensional germanene via an external electric field

R Chegel, S Behzad - Scientific Reports, 2020 - nature.com
In this paper, we present a tight-binding model based on DFT calculations for investigation
the electronic and optical properties of monolayer Germanene. The thermal properties are …

Remarkable thermopower property enhancement in two-dimensional SiC via B and N doping and magnetic field

R Chegel - Journal of Alloys and Compounds, 2023 - Elsevier
DFT-based tight binding theory calculations and the Kubo conductivity formula were used to
investigate the thermopower properties of 2D SiC with different impurity concentrations and …

Magneto-electronic and thermopower properties of B, N and Si doped monolayer graphene

R Chegel - Diamond and Related Materials, 2023 - Elsevier
Pure graphene is limited by its gapless energy band structure in catalytic reactions that are
important for energy conversion applications. However, impurities can create a band gap …

Tetragonal silicene: a study of field-dependent transport responses

R Chegel, S Behzad, AI Ayesh - Materials Science in Semiconductor …, 2023 - Elsevier
In this paper, we used tight-binding model to calculate the thermal properties of tetragonal
silicene (T-Si). T-Si has a zero band gap with two Dirac points and linear dispersion around …

Thermomechanical analysis of two-dimensional boron monolayers

T Tsafack, BI Yakobson - Physical Review B, 2016 - APS
Using density functional theory calculations (both perturbed and unperturbed) as well as
thermodynamic and ballistic transport equations, what follows investigates thermal and …

Comparative study of electronic, thermoelectric, and transport properties in germanene and carbon nanotubes

S Behzad - Materials Science and Engineering: B, 2025 - Elsevier
This study investigates the electronic, thermoelectric, and transport properties of Germanene
nanotubes (GeNTs) using a tight-binding calculations and explores their potential …

The effects of electric field on electronic and thermal properties of bilayer boron phosphide: Beyond nearest neighbor approximation

R Chegel, S Behzad - Synthetic Metals, 2020 - Elsevier
The behaviors electronic structure and density of states (DOS) of biased AB bilayer boron
phosphide (BP) with two configuration types (Btriple bondP and Btriple bondB) investigated …

Tuning temperature-dependent of thermal conductivity and heat capacity of two-dimensional GeC compared to Graphene and Germanene: Effects of magnetic field

R Chegel - Physica B: Condensed Matter, 2022 - Elsevier
The thermoelectric properties of two-dimensional (2-D) GeC investigated with the next
nearest tight binding model in the presence of the vertical magnetic field and the results are …

Engineering thermal and electrical properties of B/N doped carbon nanotubes: Tight binding approximation

S Behzad, R Chegel - Journal of Alloys and Compounds, 2019 - Elsevier
Using the tight-binding method based on density functional theory (DFT) calculations, the
thermoelectric properties of pure and B/N doped carbon nanotubes (CNTs) are investigated …