Metal halide perovskites (MHPs) are currently receiving great attention because of their photophysical properties and concomitant promise for use in both solar cells and light emitting diodes, however, fundamental properties surrounding the atomic-scale dynamics remain unclear for these materials. In this contribution, we report on results from inelastic and quasielastic neutron scattering...
Hydrogen gas is a key energy carrier for a decarbonized energy system, especially when generated by water electrolysis. Molybdenum disulfide (MoS₂) offers a cost-effective alternative to platinum catalysts for the hydrogen evolution reaction (HER) [1], though its performance remains limited by slow hydrogen dynamics and incomplete understanding of adsorption and reactivity mechanisms. This...
Hierarchical graphene–zeolite hybrid materials (MZN–GO and MGN) combine ~5 nm mesopores, sub-1.5 nm micropores, and heterogeneous carbon–zeolite interfaces containing –OH/–COOH groups, mixed sp²/sp³ domains, and defect-induced radical sites. These structural motifs strongly influence how confined water and organic dyes—here represented by Rhodamine 6G (R6G)—are adsorbed, organized, and...
Mn-doped II–VI nanostructures provide a clean playground to study how lattice vibrations reshape electronic and spin states. In our recent work on 0D Mn-doped (CdSe)₁₃ clusters and 2D Mn-doped CdSe(en)₀.₅ nanosheets, we observe giant magnetic moments and room-temperature giant Zeeman splitting, accompanied by strain-sensitive LO phonons and strong magneto-optical responses. Microstrain...
Praseodymium-doped magnetite ($\mathrm{Pr_xFe_{3-x}O_4}$, $x = 0.15$ and $0.45$) was synthesized by co-precipitation from chloride precursors to investigate the influence of lanthanide substitution on structural and magnetic properties. Both compositions crystallize in a mixed spinel structure, space group Fd-3m (no. 227), and exhibit single-phase character, as confirmed by powder X-ray...
