Polymorphism‐Dependent Organic Room Temperature Phosphorescent Scintillation for X‐Ray Imaging

• DOI: 10.1002/adma.202310663
• Publication Date: 2024-01-25T00:24:00Z
• Authors: Mengyang Dong; Anqi Lv; Xin Zou; Nan Gan; Chenxi Peng; Meijuan Ding; Xiao Wang; Zixing Zhou; Huan Chen; Huili Ma; Long Gu; Zhongfu An; Wei Huang
• Keywords: Radioluminescence

Abstract Organic phosphorescent scintillating materials have shown great potential for applications in radiography and radiation detection due to their efficient utilization of excitons. However, revealing the relationship between molecule stacking radioluminescence scintillators is still challenging. This study reports on two phenothiazine derivatives with polymorphism‐dependent phosphorescence radioluminescence. The experiments reveal that significantly affects non‐radiation decay triplet excitons scintillators, which further determines scintillation performance under X‐ray irradiation. These exhibit high radio stability a low limit 278 nGys −1 . Additionally, application these radiography, based excited properties, demonstrated. findings provide guideline obtaining high‐performance by shedding light effect crystal packing organic molecules.