发光学报2024，Vol.45Issue(4)：568-578,11.DOI:10.37188/CJL.20240009
零维金属卤化物(C24H20P)CuI2的发光性能及X射线成像
Luminescent Properties and X-ray Imaging Research of Zero Dimensional Metal halide(C24 H20 P)CuI2
摘要
Abstract
Perovskite scintillator materials are widely used in the fields of medical CT,industrial safety and non-destructive testing.As a new generation of high-performance perovskite materials,copper-based(Ⅰ)metal halides have received widespread attention from researchers.This paper uses a simple antisolvent method to prepare a new type of copper-based scintillator(C24H20P)CuI2(C24H20P = tetraphenylphosphine).(C24H20P)CuI2 displays broad-band yellow luminescence with a high photoluminescence quantum yield(PLQY)of 45.84%and a large Stokes shift of 148 nm under blue light excitation at 414 nm.High PLQY and negligible self-absorption enable(C24H20P)CuI2 to exhibit impressive scintillation performance under X-ray excitation,with a light yield of～21 000 photons/MeV and a detection limit as low as 0.869 μGy/s,which is less than the medical radiation limit of 5.5 μGy/s.In addition,(C24H20P)CuI2 exhibits extraordinary thermal stability and can withstand high temperatures up to 415℃.The excellent luminescence properties ensure that(C24H20P)CuI2-based flexible films can be prepared by mixing it with poly-dimethylsiloxane(PDMS)for X-ray imaging,which has a great potential in the field of X-ray detection and imaging.This work highlights the multiple advantages of hybrid copper iodide halide as a highly desirable X-ray scintillator with low toxicity and cost,high light yields and good thermal stability,providing a promising solution for copper-based iodide scintillators in high-quality X-ray imaging.关键词
Cu基金属卤化物/闪烁体/柔性薄膜/X射线成像Key words
Cu-based metal halide/perovskite/flexible film/X-ray imaging分类
数理科学引用本文复制引用
曹思骏,王忆家,安康,唐孝生,赖俊安,冯鹏,何鹏..零维金属卤化物(C24H20P)CuI2的发光性能及X射线成像[J].发光学报,2024,45(4):568-578,11.基金项目
国家自然科学基金(62375032,61975023) （62375032,61975023）
重庆市自然科学基金(CSTB2023TIAD-KPX0017,CSTB2022NSCQ-MSX0360) （CSTB2023TIAD-KPX0017,CSTB2022NSCQ-MSX0360）
强场激光物理国家重点实验室(上海光学精密机械研究所)开放基金 （上海光学精密机械研究所）
中国博士后科学基金(BX20230355)Support by National Natural Science Foundation of China(62375032,61975023) （BX20230355）
Natural Science Foundation of Chongqing(CSTB2023TIAD-KPX0017,CSTB2022NSCQ-MSX0360) （CSTB2023TIAD-KPX0017,CSTB2022NSCQ-MSX0360）
The Open Fund of The State Key Laboratory of High Field Laser Physics(Shanghai Institute of Optics and Fine Mechanics) （Shanghai Institute of Optics and Fine Mechanics）
China Postdoctoral Science Foundation(BX20230355) （BX20230355）
