Abstract: Organic–inorganic hybrid metal halides are a promising platform for the design of materials for circularly polarized luminescence (CPL) and X-ray detection applications. Meanwhile, despite the recent progress in this hot field, hybrid metal halides, simultaneously endowed with efficient CPL and high photoluminescence quantum yield (PLQY), are still limited to a few examples. Herein, the efficient, stable, and low-cost CPL-active Mn(II) hybrids are developed via blending of luminogenic [MnBr4]2− anions with N/OH-bond free R/S-[MBA-Me3]+ cations in a single ionic structure. The synthesized R/S-[MBA-Me3]MnBr4 hybrids display brightly green Mn2+-centered circularly polarized phosphorescence with near-unity PLQY and a high glum factor of 0.0045. Single crystals of R/S-[MBA-Me3]MnBr4 are used to fabricate UV-pumped circularly polarized light-emitting diodes (LEDs) displaying a high optical selectivity upon exposure to right-handed and left-handed circular polarization conditions. Moreover, the titled compounds are found to emit strong X-ray radioluminescence with excellent linear response to X-ray dose rate that is used for X-ray imaging demonstration. These findings reveal a great potential of R/S-[MBA-Me3]MnBr4 as low-cost materials for CPL-LEDs, scintillators, and X-ray imaging applications.

Cite: Davydova M.P. , Meng L. , Rakhmanova M.I. , Bagryanskaya I.Y. , Sulyaeva V.S. , Meng H. , Artem'ev A.V.
Highly Emissive Chiral Mn(II) Bromide Hybrids for UV‐Pumped Circularly Polarized LEDs and Scintillator Image Applications
Advanced Optical Materials. 2023. V.11. N8. 2202811 :1-8. DOI: 10.1002/adom.202202811 WOS Scopus РИНЦ

Dates:

Submitted:	Oct 24, 2022
Published online:	Feb 24, 2023
Published print:	Apr 18, 2023

Identifiers:

Web of science	WOS:000937628600001
Scopus	2-s2.0-85148662381
Elibrary	60893452
OpenAlex	W4321786026

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