Recent Advances on Organic Scintillators with High Exciton Utilization Efficiency for X‐Ray Scintillation and Imaging
He Zhang, Yao Tan, Shaolong Gong
Abstract
Organic scintillators have rapidly emerged in recent years for X-ray scintillation and imaging, benefiting from their inherent advantages of abundant raw materials, low-temperature processing, high mechanical flexibility, and easy of large-scale fabrication. However, conventional organic scintillators suffer from weak X-ray absorption and inefficient exciton utilization, limiting their commercial viability. To overcome these challenges, new-generation organic scintillators have recently been developed with innovative emission mechanisms to ensure exciton utilization efficiency and the incorporation of heavy atoms to improve X-ray absorption. In recent years, these advancements have led to remarkable progress in high-performance X-ray scintillation and imaging. Here, we present a concept article on new-generation organic scintillators with high exciton utilization efficiency, focusing on molecular design, emission mechanisms, scintillation performance, and X-ray imaging applications. We also discuss future development trends in organic X-ray scintillators.