Nature Communications· 2020Q1
Highly efficient eco-friendly X-ray scintillators based on an organic manganese halide
- 578citations
- Q1SCImago
- 2020year
Short summary
A novel organic metal halide, (C38H34P2)MnBr4, achieves state-of-the-art X-ray detection with ~95% photoluminescence quantum efficiency and a light yield of ~80,000 photon MeV−1.
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Key points
- Developed inch-sized single crystals of (C38H34P2)MnBr4 using a facile solution growth method at room temperature.
- Achieved ~95% photoluminescence quantum efficiency with green emission peaked at 517 nm.
- Demonstrated high X-ray scintillation performance: ~80,000 photon MeV−1 light yield and a low detection limit of 72.8 nGy s−1.
- Successfully visualized X-rays using powders and fabricated high-resolution flexible scintillators.
AI-generated from the title and abstract; the full text is not read.
Abstract
Abstract Scintillation based X-ray detection has received great attention for its application in a wide range of areas from security to healthcare. Here, we report highly efficient X-ray scintillators with state-of-the-art performance based on an organic metal halide, ethylenebis-triphenylphosphonium manganese (II) bromide ((C 38 H 34 P 2 )MnBr 4 ), which can be prepared using a facile solution growth method at room temperature to form inch sized single crystals. This zero-dimensional organic metal halide hybrid exhibits green emission peaked at 517 nm with a photoluminescence quantum efficiency of ~ 95%. Its X-ray scintillation properties are characterized with an excellent linear response to X-ray dose rate, a high light yield of ~ 80,000 photon MeV −1 , and a low detection limit of 72.8 nGy s −1 . X-ray imaging tests show that scintillators based on (C 38 H 34 P 2 )MnBr 4 powders provide an excellent visualization tool for X-ray radiography, and high resolution flexible scintillators can be fabricated by blending (C 38 H 34 P 2 )MnBr 4 powders with polydimethylsiloxane.
The authors' abstract, as published at the source. Nature Communications, 2020 · DOI ↗
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Field: Radiation
RadiationPhysics and Astronomy