Crown Ether‐Assisted Alkali‐Metal Copper(I) Iodide Supramolecular Scintillators with Near‐Unity Emission for Ultrahigh‐Resolution X‐Ray Imaging DOI Open Access

Yuanji Ye,

Yi‐Ming Di,

Jiahao Zhou

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Abstract Harnessing supramolecular interactions to regulate the structure and performance of functional materials is a key challenge in chemistry. Herein, study utilizes 18‐crown‐6 (18C6) ether‐assisted alkali‐metal (Na, K, Cs) copper(I) iodide assemblies precisely material structures. This approach facilitated transition from 1D mono‐royal crown coordination (18C6@KCuI 2 , CKCI) 0D di‐royal ((18C6) @Na (H O) 3 Cu 4 I 6 CNCI) tri‐royal @Cs CCCI) Interestingly, CCCI single‐crystal exhibits outstanding scintillation properties, with high relative light yield 71 000 photons MeV −1 an ultralow detection limit 39.3 nGy s which can be attributed synergistic effects 18C6 copper‐iodide clusters. It stabilizes self‐trapped exciton state, enhances localization, reduces non‐radiative losses, thus resulting large Stokes shift 193 nm near‐unity photoluminescence quantum 99.4%. Additionally, promote crystal nucleation growth, making it easy prepare centimeter‐scale transparent single crystals >80% transmittance, such as achieve ultrahigh‐resolution X‐ray imaging 26.3 lp mm . demonstrates that halide scintillators regulated through interactions, provides new for developing high‐performance scintillator materials.

Language: Английский

Crown Ether‐Assisted Alkali‐Metal Copper(I) Iodide Supramolecular Scintillators with Near‐Unity Emission for Ultrahigh‐Resolution X‐Ray Imaging DOI Open Access

Yuanji Ye,

Yi‐Ming Di,

Jiahao Zhou

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Abstract Harnessing supramolecular interactions to regulate the structure and performance of functional materials is a key challenge in chemistry. Herein, study utilizes 18‐crown‐6 (18C6) ether‐assisted alkali‐metal (Na, K, Cs) copper(I) iodide assemblies precisely material structures. This approach facilitated transition from 1D mono‐royal crown coordination (18C6@KCuI 2 , CKCI) 0D di‐royal ((18C6) @Na (H O) 3 Cu 4 I 6 CNCI) tri‐royal @Cs CCCI) Interestingly, CCCI single‐crystal exhibits outstanding scintillation properties, with high relative light yield 71 000 photons MeV −1 an ultralow detection limit 39.3 nGy s which can be attributed synergistic effects 18C6 copper‐iodide clusters. It stabilizes self‐trapped exciton state, enhances localization, reduces non‐radiative losses, thus resulting large Stokes shift 193 nm near‐unity photoluminescence quantum 99.4%. Additionally, promote crystal nucleation growth, making it easy prepare centimeter‐scale transparent single crystals >80% transmittance, such as achieve ultrahigh‐resolution X‐ray imaging 26.3 lp mm . demonstrates that halide scintillators regulated through interactions, provides new for developing high‐performance scintillator materials.

Language: Английский

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