Enhancement of scintillation performance in (C6H5C2H4NH3)2PbBr4 through Mg-substitution

IF 3.6 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2025-09-17 DOI:10.1016/j.jlumin.2025.121551

Daisuke Nakauchi , Naoki Kawano , Takumi Kato , Noriaki Kawaguchi , Takayuki Yanagida

引用次数: 0

Abstract

(C₆H₅C₂H₄NH₃)₂(Pb,Mg)Br₄ single crystals were synthesized using the solvent diffusion method, and their scintillation properties were systematically evaluated as a function of the Mg/Pb substitution ratio. Under both X-ray and ultraviolet light irradiation, the prepared samples exhibited an emission peak at around 440 nm, with a dominant fast decay component of approximately 7 ns. Pulse height measurements under ¹³⁷Cs γ-ray irradiation revealed that Mg-substitution improved the light yield by 1.3 times compared with an unsubstituted one.

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mg取代增强（C6H5C2H4NH3）2PbBr4的闪烁性能

采用溶剂扩散法合成了（C6H5C2H4NH3）2(Pb,Mg)Br4单晶，并系统地评价了其闪烁性能与Mg/Pb取代比的关系。在x射线和紫外光照射下，制备的样品在约440 nm处有一个发射峰，主要的快衰成分约为7 ns。137Cs γ射线辐照下的脉冲高度测量表明，mg取代比未取代的光产率提高了1.3倍。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.