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Related Experiment Video

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Highly Efficient Stable Luminescent Radical-Based X-ray Scintillator.

Jia-Wang Yuan¹, Qiu-Chen Peng¹, Jia-Cong Fu¹

¹Tianjian Laboratory of Advanced Biomedical Sciences, Institute of Advanced Biomedical Sciences, Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.

Journal of the American Chemical Society

|November 28, 2023

Summary

Stable luminescent radicals offer unique doublet emission for advanced materials. A new radical-based X-ray scintillator, AuPP-1.0, shows high efficiency and stability for improved X-ray imaging applications.

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Area of Science:

Materials Science
Chemistry
Physics

Background:

Stable luminescent radicals are open-shell emitters with unique doublet emission properties.
These properties offer potential for optical, electrical, and magnetic materials.

Purpose of the Study:

To develop a stable luminescent radical-based X-ray scintillator.
To investigate the mechanism behind its performance and potential for X-ray imaging.

Main Methods:

Synthesis of a stable luminescent radical-based material, AuPP-1.0.
Evaluation of X-ray excited luminescence (XEL) efficiency and stability.
Analysis of the role of gold (Au) and doublet emission characteristics.

Main Results:

AuPP-1.0 demonstrated high XEL efficiency and excellent stability.
The gold atom facilitated effective X-ray absorption.
Doublet emission characteristics enhanced exciton utilization in radioluminescence.
Fabrication of a flexible screen with a resolution of 20 LP mm⁻¹.

Conclusions:

Doublet emission is beneficial for improving exciton utilization in radioluminescence.
AuPP-1.0 represents a novel strategy for high-performance X-ray scintillators.
This work opens new avenues for advanced X-ray imaging technologies.