Design of a Simultaneous Information and Power Transfer System Based on a Modulating Feature of Magnetron

Yang, Yang; Zhang, Zihao; Zhou, Yachuan; Zhu, Huacheng

doi:10.1109/tmtt.2022.3205612

Cited by 56 publications

(16 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When in the valence band electrons are provided with a sufficient amount of energy to jump into the conduction band, then the charge carriers are produced. Electron and hole‐effective masses can be visualized from CBM and VBM curvatures [67, 68]. Electron has positive effective mass in comparison with holes that have negative effective mass.…”

Section: Resultsmentioning

confidence: 99%

Enhanced mechanical, optoelectronic and thermoelectric properties of binary CdO by under pressure: An ab initio study

Erum,

Sharma,

Anwar

et al. 2024

Int J of Quantum Chemistry

View full text Add to dashboard Cite

This manuscript presents, under the effect of different pressures (0–60 GPa), the structural, mechanical, electronic, optical, and thermoelectric properties of CdO with NaCl type structure by using the FP‐LAPW (Full Potential Linearized Augmented Plane Wave method) with Generalized Gradient Approximation (GGA) whose basis is the Density Functional Theory (DFT). PBE‐GGA was used to compute the structural, elastic, optical, electronic, and thermoelectric properties using Tran‐Blaha modified Becke‐Johnson (TB‐mBJ) potential. Different terms like formation energy, cohesive energy, and phonon were used for the computation of thermal stability and that is further confirmed by elastic properties. Bulk moduli and pressure‐dependent lattice constants were achieved by using the optimization method. From the results, we can say that the increase in pressure is directly related to the band gap and inversely related to the lattice constant. The mechanical properties show that CdO is highly ductile and mechanically stable and ductility is directly related to pressure. The minimum conduction band goes to a higher energy level when the pressure increases while the maximum valance band goes to a lower energy level ultimately the energy band gap increases. The optical parameter curve does not change by increasing pressure but the peaks start moving towards the higher energies slightly. Calculations reveals that band gap increases by increasing pressure which shows the blue shift in optical properties. The optical properties spectrum was studied, including reflectance, dielectric coefficient, and absorption coefficient. The optical constants show that the phase of CdO with NaCl structure was translucent. In the end, the thermoelectric feature in terms of thermal conductivity (K), power factor (PF), Seebeck coefficient (S), and electrical conductivity (σ) were studied by using the BoltzTrap code as a function of temperature. Thermoelectric and optical aspects revealed that pressure induces the possible use of CdO material for various TE and optical applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Enhanced mechanical, optoelectronic and thermoelectric properties of binary CdO by under pressure: An ab initio study

Erum,

Sharma,

Anwar

et al. 2024

Int J of Quantum Chemistry

View full text Add to dashboard Cite

show abstract

“…The maximum efficiency of thermoelectric materials for an energy conversion process at a given temperature can be calculated using the figure of merit as follows [68]:

\mathrm{ZT}={S}^2\times \sigma \times T/\kappa .

The figure of Merit (ZT) is one of the significant aspects of the thermoelectric property.…”

Section: Resultsmentioning

confidence: 99%

“…The plots of Power Factor (PF) against chemical potential are shown in Figure 7B that is derived from Seebeck coefficient and electrical conductivity. Another essential metric for assessing the effectiveness of real‐world thermoelectric devices is power factor (PF), which is the result of multiplying electrical conductivity by the Seebeck coefficient, which is found in [68–70]:

\mathrm{Power}\ \mathrm{factor}={S}^2\sigma,

where, σ is the electrical conductivity and S is the Seebeck coefficient.…”

Section: Resultsmentioning

confidence: 99%

“…The maximum efficiency of thermoelectric materials for an energy conversion process at a given temperature can be calculated using the figure of merit as follows [68]:…”

Section: Thermoelectric Propertiesmentioning

confidence: 99%

“…We investigate transport characteristics of this perovskite in order to better understand it and determine whether it would make a suitable material for thermoelectric applications. In order to do this, we used the semi-classical theory of Boltzmann [68][69][70] to calculate the transport parameters of AFeO 3 (A = Ca, Sr, and Ba) over a temperature range of 0-900 K. Figure 9A-D displays the most significant values for the transport parameters, including the electronic thermal conductivity, lattice thermal conductivity, electrical conductivity, and Seebeck coefficient. The Seebeck coefficient (S) variation with temperature is shown in Figure 9A.…”

Section: Thermoelectric Propertiesmentioning

confidence: 99%

See 2 more Smart Citations

First‐principles studies on physical properties for new half‐metallic perovskites AFeO₃ (A = Ca, Sr, Ba): Spintronics and energy harvesting applications

Erum,

Sharma,

Ahmad

et al. 2024

Int J of Quantum Chemistry

View full text Add to dashboard Cite

In this manuscript, structural, electronic, magnetic, and thermoelectric aspects of AFeO3 (A = Ca, Sr, Ba) have been calculated by means of the Full‐Potential Linearized Augmented Plane Wave Method (FP‐LAPW) using spin‐polarized Density Functional Theory (DFT). The calculated structural parameters have been found to be in good resemblance with previously available work. Enthalpy of formation and cohesive energy along with tolerance factor confirms structural stability. Electronic properties by Trans Blaha modified Becke–Johnson potential (TB‐mBJ) suggest metallic behavior in the spin‐up channel and semi‐conducting behavior in the spin‐down channel that supports half‐metallic behavior with mixed covalent and ionic bonding. Density of States (DOS) analysis confirms the major contribution of Fe‐3d‐states in the conduction band and O‐2p states in the valence band. The half‐metallic nature is further confirmed by the integer value of the total magnetic moment. The real and imaginary parts of dielectric functions, optical conductivities, absorption coefficients, reflectivity, and energy loss function have been calculated to evaluate suitability for optical applications. Thermoelectric properties with temperature range 300–900 K against chemical potential including figure of merit, Seebeck coefficient, thermal conductivities, and power factor, were examined using BoltzTraP code. Findings suggest that AFeO3 (A = Ca, Sr, Ba) compounds suitable for spintronic, thermoelectric as well as energy harvesting applications.

show abstract

Towards improving context-aware applications using link quality induction and self-calibrated ultra-wide band localization systems

Lai,

Zhou,

et al. 2024

Computing

View full text Add to dashboard Cite

Design of a Simultaneous Information and Power Transfer System Based on a Modulating Feature of Magnetron

Cited by 56 publications

References 16 publications

Enhanced mechanical, optoelectronic and thermoelectric properties of binary CdO by under pressure: An ab initio study

Enhanced mechanical, optoelectronic and thermoelectric properties of binary CdO by under pressure: An ab initio study

First‐principles studies on physical properties for new half‐metallic perovskites AFeO₃ (A = Ca, Sr, Ba): Spintronics and energy harvesting applications

Towards improving context-aware applications using link quality induction and self-calibrated ultra-wide band localization systems

Contact Info

Product

Resources

About

Design of a Simultaneous Information and Power Transfer System Based on a Modulating Feature of Magnetron

Cited by 56 publications

References 16 publications

Enhanced mechanical, optoelectronic and thermoelectric properties of binary CdO by under pressure: An ab initio study

Enhanced mechanical, optoelectronic and thermoelectric properties of binary CdO by under pressure: An ab initio study

First‐principles studies on physical properties for new half‐metallic perovskites AFeO3 (A = Ca, Sr, Ba): Spintronics and energy harvesting applications

Towards improving context-aware applications using link quality induction and self-calibrated ultra-wide band localization systems

Contact Info

Product

Resources

About

First‐principles studies on physical properties for new half‐metallic perovskites AFeO₃ (A = Ca, Sr, Ba): Spintronics and energy harvesting applications