Lamine Mebarki

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Questions related from Lamine Mebarki

In the Tb³⁺-doped YPO₄ matrix, how do the interactions between the dopant ions and the crystal lattice influence the J-O parameters (Ω₂, Ω₄, Ω₆)?

In the Tb³⁺-doped YPO₄ matrix, how do the interactions between the dopant ions and the crystal lattice influence the Judd-Ofelt parameters (Ω₂, Ω₄, Ω₆), and how do these variations affect the...

15 December 2024 8,720 0 View

Judd–Ofelt theory: What experimental methodology is employed to determine the Ω2, Ω4, and Ω6 parameters?

Dear colleagues, What experimental methodology is employed to determine the Ω2, Ω4, and Ω6 parameters from absorption or emission spectroscopy data of rare-earth ions embedded in a specific matrix?

04 July 2024 8,781 0 View

why phosphorus nanoparticles tend to agglomerate on the surface of a polymer ?

Dear scientist, I am interested in the reason why phosphorus nanoparticles tend to agglomerate on the surface of a polymer when dispersed therein, especially considering their average size, which...

10 March 2024 9,278 3 View

What are the effects of nanoscale charge concentration on the optical properties of polymer-based nanocomposites?

18 July 2023 4,074 3 View

What is the most appropriate solvent to dissolve PMMA (polymethyl methacrylate)?

Dear researchers, Excluding chloroform, which solvent would be suitable to dissolve PMMA while preserving its optical properties such as transparency, and which solvent would provide fast solvent...