Тип публикации: статья из журнала

Год издания: 2025

Идентификатор DOI: 10.1002/adfm.202500806

Аннотация: <jats:title>Abstract</jats:title><jats:p>Exploring new types of scintillators, especially fabricating large-area scintillating screens, is essential in applications of life science, industry, and material science. However, the thickness and light scattering in composite scintillator film present a major challenge for balancing the Показать полностьюspatial resolution and radioluminescence intensity. Herein, an in situ crystallization route is developed to innovate the preparation of the large-area scintillating screens based on the hybrid copper(I)-based C<jats:sub>6</jats:sub>H<jats:sub>8</jats:sub>N<jats:sub>2</jats:sub>OCuX (X = I and Br), in which carboxymethylcellulose sodium (CMC-Na) contribute to the “CMC-Na membrane” film formation and further increase absorption cross-section for X-ray radiation owing to the existence of Na elements. The choice of halogen can regulate the photoluminescence of C<jats:sub>6</jats:sub>H<jats:sub>8</jats:sub>N<jats:sub>2</jats:sub>OCuX (X = I, Br, and Cl) from cyan to green and then to yellow, and significant scintillation property can be achieved for C<jats:sub>6</jats:sub>H<jats:sub>8</jats:sub>N<jats:sub>2</jats:sub>OCuI with the light yield of 52 000 photons MeV<jats:sup>−1</jats:sup> and detection limit of 43.14 nGy s<jats:sup>−1</jats:sup>. Finally, the high X-ray absorption assisted by CMC-Na, as well as the thin thickness of the composite scintillator films help to realize remarkable spatial resolution above 14 lp mm<jats:sup>−1</jats:sup>. This study provides a foundation for discovering high-performance copper(I)-based halides scintillators and offers a creative think film preparation method for X-ray imaging.</jats:p>

Журнал: Advanced Functional Materials

ISSN журнала: 1616301X

Место издания: Weinheim

Издатель: Wiley Interscience

• Tang Baoling (Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou 510642 P. R. China)
• Jin Jiance (State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques School of Physics and Optoelectronics South China University of Technology Guangzhou 510641 P. R. China)
• Han Kai (State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques School of Physics and Optoelectronics South China University of Technology Guangzhou 510641 P. R. China)
• Li Tianrui (Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou 510642 P. R. China)
• Zhang Haoran (Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou 510642 P. R. China)
• Zhang Xuejie (Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou 510642 P. R. China)
• Molokeev Maxim (Laboratory of Crystal Physics Kirensky Institute of Physics Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences (KSC FRC SB RAS) Krasnoyarsk 660036 Russia)
• Wang Yuzhen (State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques School of Physics and Optoelectronics South China University of Technology Guangzhou 510641 P. R. China)
• Xia Zhiguo (State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques School of Physics and Optoelectronics South China University of Technology Guangzhou 510641 P. R. China)
• Lei Bingfu (Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and Energy South China Agricultural University Guangzhou 510642 P. R. China)

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