Tailoring efficient manganese bromide-based scintillator films with ethyl acetate assistance.

IF 2.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nanotechnology Pub Date : 2024-10-10 DOI:10.1088/1361-6528/ad8580

Kun Zhou, Muhammad Bilal, Kaiyu Xia, Yuting Xie, Ting Chen, Xiaofeng Hu, Xiuyuan Chen, Chenchen Yang, Shicheng Pan, Gang Xu, Xinxin Miao, Qingquan He, He Tengyue, Omar F Mohammed, Jun Pan

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引用次数: 0

Abstract

Metal halide scintillators serve as a compelling substitute for traditional scintillators in X-ray detection and imaging due to their low-temperature fabrication process, high light yield and mechanical flexibility. Nevertheless, the spatial resolution and photoluminescence quantum yield (PLQY) of these films are hindered by the agglomeration and uneven distribution of metal halides crystal particles during the fabrication process. We introduce a modified fabrication approach for metal halide scintillator films involving an additional step of ethyl acetate (EA) treatment, resulting in the preparation of a smooth EA-treated (Ph4P)2MnBr4/Polydimethylsiloxane film. The carbonyl groups within EA interact with elements of the (Ph4P)2MnBr4 microcrystals powder, ensuring uniform dispersion and preventing agglomeration. The EA-treated composite film demonstrates a remarkable PLQY of approximately 95% and an impressive spatial resolution of 14 lp/mm, with enhanced stability under harsh environments. These characteristics ensure its suitability as a high-performance X-ray imaging scintillator. .

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在乙酸乙酯的帮助下定制高效的溴化锰闪烁体薄膜。

在 X 射线探测和成像领域，金属卤化物闪烁体因其低温制造工艺、高光产率和机械灵活性而成为传统闪烁体的理想替代品。然而，这些薄膜的空间分辨率和光致发光量子产率（PLQY）却因制造过程中金属卤化物晶体颗粒的团聚和分布不均而受到影响。我们介绍了一种改进的金属卤化物闪烁体薄膜制造方法，其中包括额外的乙酸乙酯（EA）处理步骤，从而制备出光滑的 EA 处理 (Ph4P)2MnBr4/Polydimethylsiloxane 薄膜。EA 中的羰基与 (Ph4P)2MnBr4 微晶粉末中的元素相互作用，确保了均匀分散，防止了结块。经过 EA 处理的复合薄膜显示出约 95% 的出色 PLQY 和令人印象深刻的 14 lp/mm 空间分辨率，并在恶劣环境下具有更高的稳定性。这些特性确保了它作为高性能 X 射线成像闪烁体的适用性。

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

Nanotechnology 工程技术-材料科学：综合

CiteScore

7.10

自引率

5.70%

发文量

820

审稿时长

2.5 months

期刊介绍： The journal aims to publish papers at the forefront of nanoscale science and technology and especially those of an interdisciplinary nature. Here, nanotechnology is taken to include the ability to individually address, control, and modify structures, materials and devices with nanometre precision, and the synthesis of such structures into systems of micro- and macroscopic dimensions such as MEMS based devices. It encompasses the understanding of the fundamental physics, chemistry, biology and technology of nanometre-scale objects and how such objects can be used in the areas of computation, sensors, nanostructured materials and nano-biotechnology.