Search Results - "Chegel, Raad"

Tunable band gap and enhanced thermoelectric performance of tetragonal Germanene under bias voltage and chemical doping by Chegel, Raad

“…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…”
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Exploring the electronic and thermal properties of S-graphene: robustness effects, magnetic fields, and doping by Chegel, Raad

“…S-Graphene, a new allotrope of graphene with two Dirac cones and zero bandgap, exhibits unique and interesting electronic properties due to the robustness of…”
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Unlocking and optimizing the thermodynamic potential of tetragonal Si and Ge: Strategies and insights from a tight-binding simulation framework for material engineering by Chegel, Raad

“…•Bias voltage reduces the thermal properties of T-Si and T-Ge.•Chemical potential and magnetic field increase the thermal properties of T-Si and T-Ge.•T-Ge has…”
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Tunable Electronic, Optical, and Thermal Properties of two- dimensional Germanene via an external electric field by Chegel, Raad, Behzad, Somayeh

“…In this paper, we present a tight-binding model based on DFT calculations for investigation the electronic and optical properties of monolayer Germanene. The…”
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Investigation of effects of interlayer interaction and biaxial strain on the phonon dispersion and dielectric response of hexagonal boron arsenide by Behzad, Somayeh, Chegel, Raad

“…In this study, the effects of interlayer interaction and biaxial strain on the electronic structure, phonon dispersion and optical properties of monolayer and…”
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Optimizing thermoelectric performance of carbon-doped h-BN monolayers through tuning carrier concentrations and magnetic field by Behzad, Somayeh, Chegel, Raad

“…The thermoelectric properties of carbon-doped monolayer hexagonal boron nitride (h-BN) are studied using a tight-binding model employing Green function…”
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Third-Nearest-Neighbors Tight-Binding Description of Optical Response of Carbon Nanotubes: Effects of Chirality and Diameter by Chegel, Raad

“…We have applied a third nearest-neighbor tight binding model to investigate the optical properties of CNTs in terms of radius, chirality and magnetic field…”
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Engineering thermal and electrical properties of B/N doped carbon nanotubes: Tight binding approximation by Behzad, Somayeh, Chegel, Raad

“…Using the tight-binding method based on density functional theory (DFT) calculations, the thermoelectric properties of pure and B/N doped carbon nanotubes…”
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A hybrid density functional study of tensile-induced changes in phonon dispersion, electronic structure and optical absorption of bilayer BN for optoelectronic applications by Behzad, Somayeh, Chegel, Raad

“…[Display omitted] •The interlayer coupling in bilayer BN causes the splitting of out-of-plane ZA and ZO modes.•For all applied biaxial tensile strains,…”
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Remarkable thermopower property enhancement in two-dimensional SiC via B and N doping and magnetic field by Chegel, Raad

“…DFT-based tight binding theory calculations and the Kubo conductivity formula were used to investigate the thermopower properties of 2D SiC with different…”
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Theoretical investigation of enhanced nonlinear optical properties of silicene and carbon nanotubes: Potential applications in infrared and ultraviolet optoelectronics by Chegel, Raad

“…This theoretical study investigates the linear and nonlinear optical properties of zigzag carbon nanotubes (CNTs) and silicene nanotubes (SiNTs) with varying…”
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Magneto-electronic and thermopower properties of B, N and Si doped monolayer graphene by Chegel, Raad

“…Pure graphene is limited by its gapless energy band structure in catalytic reactions that are important for energy conversion applications. However, impurities…”
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Significant modification of the electronic structure of biased trilayer SiC and BN via magnetic field to achieve enhanced thermoelectric performance by Chegel, Raad

“…[Display omitted] •The electronic properties are strongly affected by magnetic field and bias voltage.•The 3L-SiC is semiconductor and by applying theexternal…”
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External magnetic field effects on the thermoelectric and thermodynamic properties of doped monolayer S-graphene: A theoretical study by Chegel, Raad

“…This study explores the electronic, thermoelectric, and thermal properties of S-Graphene, a unique graphene allotrope with two Dirac cones and zero band gap,…”
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Tuning temperature-dependent of thermal conductivity and heat capacity of two-dimensional GeC compared to Graphene and Germanene: Effects of magnetic field by Chegel, Raad

“…The thermoelectric properties of two-dimensional (2-D) GeC investigated with the next nearest tight binding model in the presence of the vertical magnetic…”
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Modulating the electronic properties and thermal conductivity of trilayer BX (X=N,P) by bias voltage and magnetic field by Chegel, Raad

“…Two-dimensional materials with controllable electronic properties have a significant effect on improving the performance of nanoelectronic devices. In this…”
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Combined effect of stacking and magnetic field on the electrical conductivity and heat capacity of biased trilayer BP and BN by Chegel, Raad

“…In this paper, the Kubo-Greenwood formula based on the tight-binding model is used to investigate the effects of the bias voltage and magnetic field on the…”
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Engineering the thermodynamic properties of carbon doped boron nitride nanotubes by impurity concentration and electric field by Chegel, Raad

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Influence of bias on the electronic structure and electrical conductivity and heat capacity of graphene and boron nitride multilayers by Chegel, Raad

“…•The electronic structure of BN/G/BN multilayer is investigated by tight binding.•The band gap is affected by electric field.•The electrical conductivity is…”
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Engineering the electronic structure and band gap of boron nitride nanoribbon via external electric field by Chegel, Raad

“…By using the third nearest neighbor modified tight binding (3NN-TB) method, the electronic structure and band gap of BNNRs under transverse electric fields are…”
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