Co-doped modified LiLuF4:Eu microcrystalline scintillator-based flexible film for high resolution X-ray imaging - Details

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X-ray　detectors　based　on　scintillators　are　widely　used　in　the　fields　of　medical　imaging,　high-energy　physics,　geological　exploration,　and　industrial　detection.　The　development　of　scintillation　materials　with　different　characteristics　has　become　the　focus　of　considerable　research　interest.　Herein,　we　report　a　facile　hydrothermal　synthesis　of　Gd-　and　Eu-codoped　LiLuF4　microcrystals　(MCs),　which　exhibit　strong　luminescence　of　Eu3+　ion　characteristic　emission,　characterized　by　distinct　red　fluorescence　emission.　The　research　shows　that　Gd3+　co-doping　effectively　improved　the　sensitivity　and　light　yield　of　LiLuF4:Eu　MCs　by　regulating　the　proportion　of　co-doping　ions.　In　addition,　the　detection　limit　is　140.72　nGy　s−1　for　LiLuF4:Eu,Gd　MCs,　approximately　39　times　lower　than　the　dose　requirement　of　medical　diagnosis.　Based　on　LiLuF4:Eu,Gd　MCs　with　the　superior　scintillation　properties,　a　MC-composited　film　with　250　μm　thickness　was　prepared　by　a　direct　coating　method.　The　uniform　and　high-loading　scintillation　film　exhibits　outstanding　imaging　performance　with　a　high　spatial　resolution　of　14.8　LP　mm−1,　which　confirms　the　application　potential　of　X-ray　imaging.　©　2024　The　Royal　Society　of　Chemistry.

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[ 1 ] [Huang X.]College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 2 ] [Yang J.]College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 3 ] [Lu H.]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
[ 4 ] [Lu H.]University of the Chinese Academy of Sciences, Beijing, 100049, China
[ 5 ] [Xu X.]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
[ 6 ] [Xu X.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian 350108, Fuzhou, China
[ 7 ] [Wang S.]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
[ 8 ] [Wang S.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian 350108, Fuzhou, China
[ 9 ] [Wu S.]Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, China
[ 10 ] [Wu S.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian 350108, Fuzhou, China

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CrystEngComm

ISSN： 1466-8033

Year： 2024

Issue： 19

Volume： 26

Page： 2518-2525

2 . 6 0 0

JCR@2023

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