Zero-Dimensional Antimony Oxychloride Scintillators with High Photoluminescent Efficiency

Area of Science:

• Materials Science
• Inorganic Chemistry
• Solid-State Physics

Background:

• Zero-dimensional (0D) organic-inorganic antimony hybrids offer structural flexibility and environmental safety.
• Antimony-based materials are explored for their unique luminescent and scintillation properties.

Purpose of the Study:

• To synthesize and characterize a novel 0D organic-inorganic antimony oxychloride, (AEPPz)Sb2Cl7O.
• To evaluate its photoluminescence (PL) and radioluminescence (RL) properties for potential scintillator applications.

Main Methods:

• Optimized saturated crystallization method for synthesizing (AEPPz)Sb2Cl7O.
• Photoluminescence quantum yield (PLQY) measurements.
• Radioluminescence (RL) measurements and X-ray dose rate response analysis.

Main Results:

• Successful synthesis of 0D (AEPPz)Sb2Cl7O featuring isolated [Sb2Cl7O]3- octahedra.
• Achieved broad yellow photoluminescence with a high PLQY of 80.26%.
• Demonstrated excellent radioluminescence performance with a light yield of 27,500 ph MeV-1 and a low X-ray detection threshold of 41 nGy s-1.

Conclusions:

• The synthesized (AEPPz)Sb2Cl7O exhibits superior optical and scintillation properties.
• This work presents an effective strategy for developing novel organic-inorganic hybrid oxyhalide scintillators.
• The material shows potential for clear X-ray imaging applications.