Тип публикации: статья из журнала

Год издания: 2025

Идентификатор DOI: 10.1002/adma.202509478

Аннотация: <jats:title>Abstract</jats:title> <jats:p> Cu(I)-based halide scintillators are promising candidates for X-ray detection due to excellent scintillation and low-cost solution processability. However, the rational design of Cu(I)-based halide scintillators remains challenging due to insufficient theoretical frameworks elucidating theПоказать полностьюir structure-property correlations. In this work, two Cu(I)-based hybrid metal halides, Cu <jats:sub>2</jats:sub> I <jats:sub>4</jats:sub> -IC (Ionic compound) are designed and Cu <jats:sub>4</jats:sub> I <jats:sub>4</jats:sub> -CC (Coordination compound) via bonding mode control engineering. The Cu <jats:sub>2</jats:sub> I <jats:sub>4</jats:sub> -IC exhibits blue emission, and the Cu <jats:sub>4</jats:sub> I <jats:sub>4</jats:sub> -CC exhibits yellow emission, and the photoluminescence quantum yield (PLQY) of Cu <jats:sub>2</jats:sub> I <jats:sub>4</jats:sub> -IC and Cu <jats:sub>2</jats:sub> I <jats:sub>4</jats:sub> -IC are 91% and 100% respectively. The non-radiative transitions are reduced due to the high rigidity of Cu <jats:sub>4</jats:sub> I <jats:sub>4</jats:sub>, resulting in a light yield up to 67 500 photons MeV <jats:sup>−1</jats:sup> and a detection limit as low as 47.3 nGy s <jats:sup>−1</jats:sup> of Cu <jats:sub>4</jats:sub> I <jats:sub>4</jats:sub> -CC. Additionally, a high-performance scintillator hydrogel based on Cu <jats:sub>4</jats:sub> I <jats:sub>4</jats:sub> -CC with polyvinyl alcohol (PVA),H <jats:sub>2</jats:sub> O and dimethyl sulfoxide (DMSO) is innovatively developed. Owing to the high transmittance, the large-area scintillator hydrogel film (10 × 10 cm <jats:sup>2</jats:sup> ) achieves an X-ray imaging resolution of 14 lp mm <jats:sup>−1</jats:sup>. Furthermore, the synergistic effects of hydrogen bonding and coordination bonding endow the hydrogel scintillator with excellent plasticity and flexible stretchability. The Cu <jats:sub>4</jats:sub> I <jats:sub>4</jats:sub> -CC@PVA hydrogel proves promising for X-ray imaging with excellent stability in harsh environments, matching state-of-the-art scintillators. </jats:p>

Журнал: Advanced Materials

Выпуск журнала: Т.37, №42

Номера страниц: 09478

ISSN журнала: 09359648

Издатель: VCH Verlag GmbH &amp; CO. KGaA

• 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)
• 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 Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices 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 Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices School of Physics and Optoelectronics South China University of Technology Guangzhou 510641 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)
• Zhao Hailian (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 (International Research Center of Spectroscopy and Quantum Chemistry - IRC SQC Siberian Federal University Krasnoyarsk 660041 Russia)
• Wang Yuzhen (State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices 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 Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices 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)

• Ядро РИНЦ (eLIBRARY.RU)