Mao Peng, Tang Yongan, Wang Bohan, Fan Dianyuan, Wang Yu
SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, P. R. China.
ACS Appl Mater Interfaces. 2022 May 18;14(19):22295-22301. doi: 10.1021/acsami.2c02660. Epub 2022 May 9.
Recently, organic-inorganic hybrid scintillators have received more and more attention because of their merits of easy preparation, good stability, and nontoxicity. Considering the high cost of traditional inorganic scintillators, here we describe experimental investigations of a low-cost zero-dimensional scintillator comprising organic-inorganic hybrid cuprous halide and its capabilities for sensitive X-ray detection and flexible X-ray imaging. This scintillator is synthesized using a facile antisolvent diffusion method with large scalability (50 g). The crystal structure shows an unreported plane rhombus cuprous halide core, which also demonstrates outstanding photoluminescence with a high quantum yield (99.5%), excellent radioluminescence with an efficient internal light yield (25 000 photon/MeV), and sensitive X-ray response with a low detection limit (40.4 nGy/s). The organic-inorganic hybrid chemical feature allows the fabrication of a flexible film based on this scintillator for fine-resolution X-ray radiography. These advantages endow our organic-inorganic hybrid scintillator with promising potential in wearable and portable medical devices.
近年来，有机-无机杂化闪烁体因其易于制备、稳定性好和无毒等优点而受到越来越多的关注。考虑到传统无机闪烁体成本高昂，在此我们描述了一种低成本零维闪烁体的实验研究，该闪烁体由有机-无机杂化卤化亚铜组成，及其用于灵敏X射线检测和柔性X射线成像的能力。这种闪烁体采用简便的反溶剂扩散法合成，具有很大的可扩展性（50克）。晶体结构显示出一种未报道的平面菱形卤化亚铜核，其还表现出出色的光致发光，量子产率高（99.5%），优异的辐射发光，内部光产额高（25000光子/兆电子伏），以及灵敏的X射线响应，检测限低（40.4纳戈瑞/秒）。有机-无机杂化化学特性使得基于这种闪烁体制备柔性薄膜用于高分辨率X射线摄影成为可能。这些优点赋予我们的有机-无机杂化闪烁体在可穿戴和便携式医疗设备方面具有广阔的应用潜力。
