Structural diversity in proline-based lead bromide chiral perovskites

Sirenko, Valerii Y.; Kucheriv, Olesia I.; Fritsky, Igor O.; Gumienna‐Kontecka, Elżbieta; Dascălu, Andrei; Shova, Sergiu; Gural'skiy, Il’ya A.

doi:10.1039/d3dt02056h

Cited by 1 publication

(1 citation statement)

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“…At present, there have been many studies of the structure–property relationship of lead-based halide perovskite luminescent materials. Research has shown that different connection modes of octahedra result in different dimensional configurations, , as well as varying degrees of distortion of octahedra, which are factors affecting the luminescence properties of lead-based halide perovskites. Compared with that of lead-based halide perovskites, the structure–property relationship of copper(I)-based halides has received less attention, and these studies are relatively isolated.…”

Section: Introductionmentioning

confidence: 99%

Dimethylamine Copper(I) Halide Single Crystals: Structure, Physical Properties, and Scintillation Performance

Wang,

Du,

Wang

et al. 2024

Inorg. Chem.

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Hybrid copper(I) halides have garnered a significant amount of attention as potential substitutes in luminescence and scintillation applications. Herein, we report the discovery and crystal growth of new zero-dimensional compounds, (C 2 H 8 N) 3 Cu 2 I 5 and (C 2 H 8 N) 4 Cu 2 Br 6 . The bromide and iodide have a triclinic structure with space group P1̅ and an orthorhombic structure with space group Pnma, respectively. (C 2 H 8 N) 3 Cu 2 I 5 exhibits cyan emission peaking at 504 nm with a photoluminescence quantum yield (PLQY) of 34.79%, while (C 2 H 8 N) 4 Cu 2 Br 6 shows yellowish-green emission peaking at 537 nm with a PLQY of 38.45%. The temperature-dependent photoluminescence data of both compounds were fitted to theoretical models, revealing that nonradiative intermediate states significantly affect thermal quenching and antiquenching. Electron−phonon interactions, the origin of emission line width broadening and peak shifting, were also investigated via fittings. The scintillation properties of (C 2 H 8 N) 3 Cu 2 I 5 were evaluated, and an X-ray imaging device was successfully fabricated using (C 2 H 8 N) 3 Cu 2 I 5 . This work demonstrates the potentiality of copper halides in lighting and X-ray imaging applications.

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Section: Introductionmentioning

confidence: 99%