Enhanced radiation hardness of a copper iodine cluster framework scintillator using a bridging macrocyclic ligand with aggregation-induced emission properties
Year: 2026
Type: article
Abstract: As an emerging class of inorganic-organic hybrid scintillators, copper iodide clusters have garnered significant research interest owing to their numerous advantages, including structural diversity, high X-ray absorption capacity, superior X-ray excited luminescence (XEL) performance, and low toxicity. However, their practical applications are hindered by insufficient stability, particularly low radiation hardness. Constructing a framework material by connecting copper iodide clusters with bridging ligand has been demonstrated as an effective approach to enhance the stability, while improving the radiation hardness of the copper iodide cluster frameworks remains a challenge. In this study, a non-conjugated bridging macrocyclic AIE ligand was introduced to the copper iodide cluster framework scintillator. The obtained framework exhibits good X-ray excited luminescence and successfully used for high-performance X-ray imaging. The non-conjugated bridging structure of ligand endows the copper iodine cluster framework with excellent radiation hardness, providing a new strategy for the construction of high-performance scintillator. Copper iodide clusters, known for their exceptional X-ray luminescence and low toxicity, face challenges in stability and radiation hardness, limiting their practical applications. Here, the authors introduce a non-conjugated bridging macrocyclic ligand with aggregation-induced emission properties to enhance the radiation hardness of a copper iodine cluster framework, achieving high-performance X-ray imaging and offering a strategy for scintillator development.
Source: Communications Chemistry
Authors: Li-Qiang Yue, Xiao-Man Xu, Meng-Han Fu, Yuan-Yuan Li, Ruo-Yu Cao, Qing-He Pan, You-Song Hu, Ruo-Yu Fang, Kai Li
Institutions: Henan University of Technology, Zhengzhou University
Language: English
Subfield: Radiation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,690
OpenAlex ID: W7154338608