Mn(II)-Doped Perovskites with Carboxylic Acid Dimers Exhibiting Scintillation.

Layered hybrid metal halide perovskites, characterized by their distinctive quantum well structures and significant exciton binding energies, exhibit exceptional fluorescence properties, rendering them ideal candidates for high light yield scintillators. However, significant challenges remain in synthesizing layered metal halide perovskites with high photoluminescence quantum yields (PLQY), large Stokes shifts, and stable radioluminescence (RL). In this study, a stable Mn(II)-doped layered perovskite was successfully synthesized.

Stepwise amplification of circularly polarized luminescence in indium-based metal halides by regulating their structural dimension.

The pursuit of chiral lead-free metal halides with both high photoluminescence quantum yield (PLQY) and large luminescence dissymmetry factor (g) remains a priority for designing efficient circularly polarized light sources. However, a tradeoff exists between PLQY and g in chiral materials due to the mismatched electric (μ) and magnetic transition dipole moment (m). Herein, we address this contradiction and develop the efficient circularly polarized luminescence (CPL) emitters through structural dimension modulation.

Highly efficient circularly polarized electroluminescence based on chiral manganese(ii) complexes.

Currently reported circularly polarized luminescent devices are primarily based on rare earth and noble metal complexes or lead perovskite materials. Reports on electroluminescent devices employing eco-friendly luminescent materials are notably scarce. In this study, we strategically designed and synthesized manganese complexes featuring Binapo as the chiral ligand.

Amino-Acid-Induced Circular Polarized Luminescence in One-Dimensional Manganese(II) Halide Hybrid.

Circular polarized luminescence (CPL)-active materials attract great attentions owing to their widely applications in 3D optical displays and encrypted transmission. Inspired by the strategies adopted in perovskite based CPL materials, herein, CPL-active hybrids (D)- and (L)-(tert-butyl prolinate)MnCl were successfully prepared by assembling chiral D/L tert-butyl prolinate with manganese (II) chloride. Single crystal structures show the as-formed hybrids possess one-dimensional (1D) structure containing linear chains of face-sharing MnCl octahedral surrounded by prolinate cations.

Reversible Luminescent Vapochromism of a Zero-Dimensional Sb-Doped Organic-Inorganic Hybrid.

Photoactive metal ions doping is an efficient way to modulate the photophysical properties of perovskite. Herein, we report a zero-dimensional (0D) by doping Sb into , which undergoes a significant enhancement of the emission peak at 550 nm with photoluminescence quantum yield boosting from 20% to 90%. Interestingly, a red-shifted emission is observed on upon exposure to ethanol and DMF vapor with the emission peak red-shifted from 550 to 580 and 600 nm, respectively.