Affiliation:
1. State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 P. R. China
2. State Key Laboratory of Integrated Optoelectronics College of Electronic Science and Engineering Jilin University Changchun 130012 P. R. China
3. Optical Functional Theragnostic Joint Laboratory of Medicine and Chemistry The First Hospital of Jilin University Changchun 130012 P. R. China
Abstract
AbstractMetal halide scintillators serve as promising candidates for X‐ray detection due to their high attenuation coefficients, high light yields, and low‐cost solution‐processable characteristics. However, the issues of humidity/thermal quenching and mechanical fragility, remain obstacles to the broad and diversified development of metal halide scintillators. Here, this work reports a lead‐free, water‐stable, stretchable, and self‐healing (ethylenebis‐triphenylphosphonium manganese (II) bromide (C38H34P2)MnBr4 organogel scintillator that meets X‐ray imaging in complex scenarios. The robust organogel scintillator can be stretched with elongation up to 1300% while maintaining the scintillation properties. Activated by the dynamic hydrogen bonds and coordination bonds design, the organogel scintillator exhibits excellent self‐healing properties at room temperature to alleviate the vignetting problem of the rigid scintillator films, the X‐ray imaging resolution can reach 16.7 lp mm−1. The organogel scintillator can also realize flexible and self‐healing X‐ray imaging in water, providing a design path for portable devices in harsh conditions.
Funder
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science