The application discloses a kind of wide temperature range stable
copper cluster
scintillator and its preparation method and application, the
scintillator chemical general formula is Cu4X4 (dppyme) 2, by introducing methyl in
pyridine ring 6 position structure space constraint, induce to form long-range ordered
crystal packing phase, significantly enhance the lattice rigidity.This material has the microcosmic
energy level structure of thermal activation delayed
fluorescence (TADF) and self-trapped excitor (STE) light emitting mechanism synergism, in-190 ℃ to 150 ℃ extremely wide temperature range, excellent
radiation luminescence stability is shown.The application is prepared by
room temperature solution method, and process is simple.The flexible film constructed using the material improves the
mechanical stability by
polymer embedding process, and the spatial resolution reaches 27.8 lp / mm, which is suitable for X-
ray detection and imaging in extreme environments such as
deep space exploration, polar scientific research and high-temperature industrial detection.