Highly stable hybrid antimony(Ⅲ) halide single crystal scintillator with self-trapped excitons emission for X-ray detection

IF 3.3 3区物理与天体物理 Q2 OPTICS Journal of Luminescence Pub Date : 2025-03-10 DOI:10.1016/j.jlumin.2025.121182

Xiaohui Chi , Yunyun Li , Wen Li , Jiajie Zhu , Huixin Xiu , Yuntao Wu

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Abstract

X-ray detection scintillators have attracted widespread attention due to their vital application in the fields of medical diagnostics, security inspections and industrial non-destructive testing. Hybrid antimony(Ⅲ) halides have emerged as potential candidates due to high photoluminescence quantum yield (PLQY), superb stability, and excellent solution processability. Here, zero-dimensional (0D) organic-inorganic hybrid halide scintillator CTP₂SbCl₅ (CTP = (2-chlorobenzyl)triphenylphosphonium) single crystals are prepared by a solution-based slow cooling crystallization method. CTP₂SbCl₅ crystals exhibit bright yellow broadband emission centered at 625 nm with a high PLQY of 57.6 %. Importantly, CTP₂SbCl₅ possesses comprehensive scintillation performance, including a light yield of 8700 photons MeV⁻¹, low afterglow and detection limit of 134.2 nGy_air s⁻¹, along with excellent irradiation and environmental stability. The results suggest that CTP₂SbCl₅ has great potential in the field of X-ray detection and imaging.

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.