Hydrophobic long-chain two-dimensional perovskite scintillators for underwater X-ray imaging  

作　　者：Jin-Xiao Zheng Zi-An Zhou Tiao Feng Hui Li Cheng-Hua Sun NüWang Yang Tian Yong Zhao Shu-Yun Zhou 

机构地区：[1]Key Laboratory of Photochemical Conversion and Optoelectronic Materials,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]Laboratory of Bioinspired Smart Interfacial Science and Technology of the Ministry of Education,Beijing Key Laboratory of Bioinspired Energy Materials and Devices,School of Chemistry,Beijing Advanced Innovation Center for Biomedical Engineering,Beihang University,Beijing 100191,China [4]Department of Engineering Physics,Tsinghua University and Key Laboratory of Particle and Radiation Imaging Ministry of Education,Tsinghua University,Beijing 100084,China e-mail:[e-mail]

出　　处：《Rare Metals》2024年第1期175-185,共11页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (NSFC)(Nos.22175007 and 21975007);the National Natural Science Foundation for Outstanding Youth Foundation;the Fundamental Research Funds for the Central Universities (No.YWF-22-K-101);the National Program for Support of Top-notch Young Professionals and the 111project (Nos.B14009)。

摘　　要：The underwater X-ray imaging technology development is significant to subaqueous target reconnaissance/detection/identification, subfluvial archaeology,submerged resource exploration, etc. As the core of X-ray imaging detection, the scintillator has been plagued by inherent moisture absorption and decomposition, and strict requirements for seamless packaging and waterproofing.Here, we designed a manganese-doped two-dimensional(2D) perovskite scintillator modified by hydrophobic longchain organic amine through the combination of component and doping engineering. The modified perovskites show high water repellency that can be used as an underwater X-ray scintillator. X-ray images of aquatic organisms or other objects with a high spatial resolution of10 lp·mm^(-1) at a big view field(32 mm × 32 mm) were obtained by scintillation screen. This hydrophobic perovskite scintillator based on molecular design is of great promise in underwater X-ray nondestructive testing technology development.

关 键 词：Two-dimensional perovskite HYDROPHOBIC SCINTILLATORS Underwater X-ray imaging Underwater nondestructive testing technology 

分 类 号：TB34[一般工业技术—材料科学与工程]