Journal
NATURE COMMUNICATIONS
Volume 11, Issue 1, Pages -Publisher
NATURE RESEARCH
DOI: 10.1038/s41467-020-18119-y
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Funding
- Air Force Office of Scientific Research, under the Organic Materials Chemistry program [FA9550-18-1-0231]
- National Science Foundation [ECCS-1912911, DMR-1709116]
- Florida State University Office of Research
- National Science Foundation MRI program [CHE-1828362]
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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 ((C38H34P2)MnBr4), 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 similar to 95%. Its X-ray scintillation properties are characterized with an excellent linear response to X-ray dose rate, a high light yield of similar to 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 (C38H34P2)MnBr4 powders provide an excellent visualization tool for X-ray radiography, and high resolution flexible scintillators can be fabricated by blending (C38H34P2)MnBr4 powders with polydimethylsiloxane.
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