Mohamed Kria
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Mohamed Kria has a total of 26 co-authors. Here are the top co-authors by number of shared publications:
- Elmustapha Feddi
School of Applied and Engineering Physics, Mohammed VI Polytechnic University, Lot 660, Hay Moulay Rachid Ben Guerir 43150, Morocco
6 shared publications - Laura Milenas Pérez
Departamento de Ingeniería Industrial y de Sistemas, Universidad de Tarapacá, Casilla 7D, Arica 1000000, Chile
6 shared publications - David Laroze
Instituto de Alta Investigación, Universidad de Tarapaca, Arica 1000000, Chile
5 shared publications - Jawad El Hamdaoui
Group of Optoelectronic of Semiconductors and Nanomaterials, ENSAM, Mohammed V University in Rabat, Rabat 10100, Morocco
4 shared publications - Mohamed El-Yadri
Group of Optoelectronic of Semiconductors and Nanomaterials, ENSAM, Mohammed V University, Rabat 10100, Morocco
3 shared publications - Kamal Lakaal
Laboratory of Condensed Matter and Interdisciplinary Sciences (LaMCScI), Faculty of Sciences, Mohammed V University in Rabat, Rabat 10100, Morocco
2 shared publications
Latest Publications
- 28 April 2026
- Published by IOP Publishing in Physica Scripta
- Vol. 101 (19)
Lead-free double perovskite Cs2Au2Br6 for high-efficiency solar cells: A DFT and SCAPS-1D study
Lead toxicity remains a major obstacle to the commercialization of halide perovskites, despite their remarkable photovoltaic performance. To address this limitation, this study explores the lead-free double perovskite compound Cs₂Au₂Br₆ as an alternative absorbing material. A combined approach based on density functional theory (DFT) and numerical simulation via SCAPS-1D was used to evaluate its structural, electronic, optical, and photovoltaic properties. Ab initio calculations reveal that Cs₂Au₂Br₆ is a direct bandgap semiconductor with a bandgap of 1.023 eV, a high absorption coefficient of 10⁵ cm⁻¹, and superior thermodynamic stability, making it compatible with efficient sunlight absorption. Based on these characteristics, we modeled a solar cell with an ITO/TiO₂/Cs₂Au₂Br₆/spiro-OMeTAD/Mo structure, analyzing the effects of the absorbing layer thickness, doping density, and band alignments. The optimized structure achieves a power conversion efficiency of 22.31%, demonstrating the strong potential of this material for thin-film photovoltaic applications. These results make a significant contribution to the search for alternative non-toxic photovoltaic materials and position Cs₂Au₂Br₆ as a promising candidate for the next generation of sustainable and high-performance solar cells.
- 28 April 2026
- Published by IOP Publishing in Physica Scripta
- Vol. 101 (19)
Lead-free double perovskite Cs2Au2Br6 for high-efficiency solar cells: A DFT and SCAPS-1D study
Lead toxicity remains a major obstacle to the commercialization of halide perovskites, despite their remarkable photovoltaic performance. To address this limitation, this study explores the lead-free double perovskite compound Cs₂Au₂Br₆ as an alternative absorbing material. A combined approach based on density functional theory (DFT) and numerical simulation via SCAPS-1D was used to evaluate its structural, electronic, optical, and photovoltaic properties. Ab initio calculations reveal that Cs₂Au₂Br₆ is a direct bandgap semiconductor with a bandgap of 1.023 eV, a high absorption coefficient of 10⁵ cm⁻¹, and superior thermodynamic stability, making it compatible with efficient sunlight absorption. Based on these characteristics, we modeled a solar cell with an ITO/TiO₂/Cs₂Au₂Br₆/spiro-OMeTAD/Mo structure, analyzing the effects of the absorbing layer thickness, doping density, and band alignments. The optimized structure achieves a power conversion efficiency of 22.31%, demonstrating the strong potential of this material for thin-film photovoltaic applications. These results make a significant contribution to the search for alternative non-toxic photovoltaic materials and position Cs₂Au₂Br₆ as a promising candidate for the next generation of sustainable and high-performance solar cells.
- Open Access
- 28 June 2023
- Published by University of Thi-Qar in University of Thi-Qar Journal of Science
- Vol. 10 (1) , 61-65
Applications of Hybrid Metal Nanoparticle-Quantum Dot in Biomedical Applications
Nanomaterials are at the forefront of the fast-paced development of nanotechnology. These materials are outstanding and indispensable in various human activities as long as their size-dependent characteristics. One of the most promising applications of nanomaterials is biomedical. This work reviews the hybrid quantum dot-metal nanoparticle applications in biomedical. An analytical model for the double quantum dot
- 28 June 2023
- Published by University of Thi-Qar in University of Thi-Qar Journal of Science
- Vol. 10 (1) , 61-65
Open AccessApplications of Hybrid Metal Nanoparticle-Quantum Dot in Biomedical Applications
Nanomaterials are at the forefront of the fast-paced development of nanotechnology. These materials are outstanding and indispensable in various human activities as long as their size-dependent characteristics. One of the most promising applications of nanomaterials is biomedical. This work reviews the hybrid quantum dot-metal nanoparticle applications in biomedical. An analytical model for the double quantum dot
- Open Access
- 24 October 2022
- Published by MDPI AG in International Journal of Molecular Sciences
- Vol. 23 (21) , 12785
Ab Initio Study of Carrier Mobility, Thermodynamic and Thermoelectric Properties of Kesterite Cu2ZnGeS4
The kesterite CuZnGeS (CZGS) has recently gained significant interest in the scientific community. In this work, we investigated the thermodynamic and thermoelectric properties of CZGS by employing the first-principals calculation in association with the quasi-harmonic approximation, Boltzmann transport theory, deformation potential theory, and slack model. We obtained a bandgap of 2.05 eV and high carrier mobility. We found that CZGS exhibits adequate thermoelectric properties as a promising material for thermoelectric applications. The calculated Seebeck coefficient at room temperature is 149 µV·K. We also determined the thermal and electrical conductivity, the power factor, and the figure of merit. In addition, the thermodynamic properties such as Debye temperature, entropy, and constant volume heat capacity are estimated. According to our results, it is concluded that the Slack model fails to provide correct values for lattice thermal conductivity in this material.- 24 October 2022
- Published by MDPI AG in International Journal of Molecular Sciences
- Vol. 23 (21) , 12785
Open AccessAb Initio Study of Carrier Mobility, Thermodynamic and Thermoelectric Properties of Kesterite Cu2ZnGeS4
The kesterite CuZnGeS (CZGS) has recently gained significant interest in the scientific community. In this work, we investigated the thermodynamic and thermoelectric properties of CZGS by employing the first-principals calculation in association with the quasi-harmonic approximation, Boltzmann transport theory, deformation potential theory, and slack model. We obtained a bandgap of 2.05 eV and high carrier mobility. We found that CZGS exhibits adequate thermoelectric properties as a promising material for thermoelectric applications. The calculated Seebeck coefficient at room temperature is 149 µV·K. We also determined the thermal and electrical conductivity, the power factor, and the figure of merit. In addition, the thermodynamic properties such as Debye temperature, entropy, and constant volume heat capacity are estimated. According to our results, it is concluded that the Slack model fails to provide correct values for lattice thermal conductivity in this material. - Open Access
- 13 October 2021
- Published by MDPI AG in Nanomaterials
- Vol. 11 (10) , 2692
Strain Effects on the Electronic and Optical Properties of Kesterite Cu2ZnGeX4 (X = S, Se): First-Principles Study
Following the chronological stages of calculations imposed by the WIEN2K code, we have performed a series of density functional theory calculations, from which we were able to study the effect of strain on the kesterite structures for two quaternary semiconductor compounds CuZnGeS and CuZnGeSe. Remarkable changes were found in the electronic and optical properties of these two materials during the application of biaxial strain. Indeed, the band gap energy of both materials decreases from the equilibrium state, and the applied strain is more pronounced. The main optical features are also related to the applied strain. Notably, we found that the energies of the peaks present in the dielectric function spectra are slightly shifted towards low energies with strain, leading to significant refraction and extinction index responses. The obtained results can be used to reinforce the candidature of CuZnGeX(X = S, Se) in the field of photovoltaic devices.- 13 October 2021
- Published by MDPI AG in Nanomaterials
- Vol. 11 (10) , 2692
Open AccessStrain Effects on the Electronic and Optical Properties of Kesterite Cu2ZnGeX4 (X = S, Se): First-Principles Study
Following the chronological stages of calculations imposed by the WIEN2K code, we have performed a series of density functional theory calculations, from which we were able to study the effect of strain on the kesterite structures for two quaternary semiconductor compounds CuZnGeS and CuZnGeSe. Remarkable changes were found in the electronic and optical properties of these two materials during the application of biaxial strain. Indeed, the band gap energy of both materials decreases from the equilibrium state, and the applied strain is more pronounced. The main optical features are also related to the applied strain. Notably, we found that the energies of the peaks present in the dielectric function spectra are slightly shifted towards low energies with strain, leading to significant refraction and extinction index responses. The obtained results can be used to reinforce the candidature of CuZnGeX(X = S, Se) in the field of photovoltaic devices. - Open Access
- 8 June 2021
- Published by MDPI AG in Nanomaterials
- Vol. 11 (6) , 1513
Quantum Confined Stark Effect on the Linear and Nonlinear Optical Properties of SiGe/Si Semi Oblate and Prolate Quantum Dots Grown in Si Wetting Layer
We have studied the parallel and perpendicular electric field effects on the system of SiGe prolate and oblate quantum dots numerically, taking into account the wetting layer and quantum dot size effects. Using the effective-mass approximation in the two bands model, we computationally calculated the extensive variation of dipole matrix (DM) elements, bandgap and non-linear optical properties, including absorption coefficients, refractive index changes, second harmonic generation and third harmonic generation as a function of the electric field, wetting layer size and the size of the quantum dot. The redshift is observed for the non-linear optical properties with the increasing electric field and an increase in wetting layer thickness. The sensitivity to the electric field toward the shape of the quantum dot is also observed. This study is resourceful for all the researchers as it provides a pragmatic model by considering oblate and prolate shaped quantum dots by explaining the optical and electronic properties precisely, as a consequence of the confined stark shift and wetting layer.
- 8 June 2021
- Published by MDPI AG in Nanomaterials
- Vol. 11 (6) , 1513
Open AccessQuantum Confined Stark Effect on the Linear and Nonlinear Optical Properties of SiGe/Si Semi Oblate and Prolate Quantum Dots Grown in Si Wetting Layer
We have studied the parallel and perpendicular electric field effects on the system of SiGe prolate and oblate quantum dots numerically, taking into account the wetting layer and quantum dot size effects. Using the effective-mass approximation in the two bands model, we computationally calculated the extensive variation of dipole matrix (DM) elements, bandgap and non-linear optical properties, including absorption coefficients, refractive index changes, second harmonic generation and third harmonic generation as a function of the electric field, wetting layer size and the size of the quantum dot. The redshift is observed for the non-linear optical properties with the increasing electric field and an increase in wetting layer thickness. The sensitivity to the electric field toward the shape of the quantum dot is also observed. This study is resourceful for all the researchers as it provides a pragmatic model by considering oblate and prolate shaped quantum dots by explaining the optical and electronic properties precisely, as a consequence of the confined stark shift and wetting layer.