Publications by authors named "M Loulidi"

Article Synopsis
  • CdS(Se)/graphene oxide (GO) heterostructures are explored for their promising applications in optoelectronic devices, exhibiting tunable band gaps and efficient charge transfer properties.
  • Density Functional Theory (DFT) calculations reveal the influence of oxygen concentration in GO on the photocatalytic performance and the semiconductor properties of CdS(Se).
  • The findings highlight that the oxidation level in GO impacts the band gap and electronic characteristics, with surface states playing a significant role in charge transfer dynamics, positioning these heterostructures as favorable for photocatalytic hydrogen generation.
View Article and Find Full Text PDF

We present a detailed analysis of the dynamical behavior of an inhomogeneous Burridge-Knopoff model, a simplified mechanical model of an earthquake. Regardless of the size of seismic faults, a soil element rarely has a continuous appearance. Instead, their surfaces have complex structures.

View Article and Find Full Text PDF

Superconductivity in two-dimensional materials has attracted considerable attention. A new material belonging to the family of Janus transition metal dichalcogenides with out-of-plane structural asymmetry has been recently found to show interesting physical and chemical properties. Using density functional theory and density functional perturbation theory, within the generalized gradient approximation with van der Waals correction, we performed a detailed investigation of the electronic structure, phonon dispersion, Eliashberg spectral function, and electron-phonon coupling of Janus MSSe bilayers (M = Mo or W) and the Janus MoSSe/WSSe heterostructure intercalated with alkali metals (Li, Na, and K) or alkaline earth metals (Mg, Ca, and Sr).

View Article and Find Full Text PDF
Article Synopsis
  • Researchers explored a perovskite system composed of methylammonium lead halide (MAPbI3), iron oxide (Fe2O3), and aluminum zinc oxide (ZnO:Al) as a potential photocatalyst for hydrogen production under visible light.
  • The combination of these materials creates a heterostructure that efficiently separates electrons and holes while protecting the perovskite from degradation, leading to improved photocatalytic activity.
  • Theoretical calculations showed that this heterostructure could produce hydrogen at high rates, with yields of 265.05 μmol/g at neutral pH and 362.99 μmol/g at acidic pH, indicating great potential for stable and effective photocatalysts.
View Article and Find Full Text PDF

Blue phosphorene is an interesting two-dimensional (2D) material, which has attracted the attention of researchers, due to its affluent physical and chemical properties. In recent years, it was discovered that the intercalation of alkali metals and alkaline earth metals in 2D materials may lead to conventional Bardeen-Cooper-Schrieffer (BCS) superconductivity. In this work, the electronic structure, phonon dispersion, Eliashberg spectral function, electron-phonon coupling (EPC), and the critical temperature of blue phosphorene bilayer intercalated by alkali metals (Li, and K) and alkaline earth metals (Ca, and Sr) for both AB and AC stacking orders are studied using the density functional theory and the density functional perturbation theory, within the generalized gradient approximation with van der Waals correction.

View Article and Find Full Text PDF