材料科学
闪烁体
锰
X射线
溴化物
纳米技术
光电子学
化学工程
无机化学
光学
冶金
探测器
化学
物理
工程类
作者
Tarannuma Ferdous Manny,Tunde Blessed Shonde,He Liu,Md. Sazedul Islam,Oluwadara Joshua Olasupo,Jarek Viera,Sahel Moslemi,Mohammad Khizr,Cianna Chung,J. S. Raaj Vellore Winfred,Luis Stand,Edwin F. Hilinski,Joseph B. Schlenoff,Biwu Ma
标识
DOI:10.1002/adfm.202413755
摘要
Abstract 0D organic metal halide hybrids (OMHHs) have recently emerged as a new generation of scintillation materials, due to their high luminescence quantum efficiency, sensitivity, stability, and cost‐effectiveness. While numerous 0D OMHH scintillators have been developed to date, most of them are based on solution grown single crystals that require time‐consuming synthesis and are limited in size. Here, high‐performance X‐ray scintillators based on facile solution processed 0D OMHH amorphous films are reported for the first time. By reacting triphenyl(9‐phenyl‐9H‐carbazol‐3‐yl) phosphonium bromide (TPPcarzBr) with manganese bromide (MnBr 2 ), 0D (TPPcarz)₂MnBr₄ amorphous films can be prepared via solution processing with mild thermal annealing, which exhibits green photoluminescence with an emission maximum ≈517 nm and a photoluminescence quantum efficiency of ≈87%. The X‐ray scintillation of 0D (TPPcarz)₂MnBr₄ amorphous films is characterized to exhibit a light yield of 44600 photon MeV −1 and an outstanding linearity with a low limit of detection of 32.42 nGy air s −1 over a wide range of X‐ray dose rates. The versatile processability of 0D (TPPcarz)₂MnBr₄ is illustrated with remarkable recyclability, high cost‐effectiveness, and scalability for large‐scale production. By taking advantage of the amorphous nature of newly designed OMHHs, the approach opens up new opportunities for developing high‐performance, solution‐processable scintillators.
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