13 March 2008 Synthesis and characterization of scintillating lead-iodide-based nanocrystals
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Lead-iodide-based nanocrystals were synthesized by dissolution of commercial lead iodide powder in a coordinating solvent, tetrahydrofuran, and subsequent re-crystallization after an optimum addition of methanol. The nanocrystals were characterized by transmission electron microscopy, scanning electron microscopy, energy dispersive spectroscopy (EDS), steady state UV-visible optical absorption and photoluminescence spectroscopy, and by photoluminescence lifetime and quantum efficiency measurements. The radiation hardness of the synthesized material was tested using a 137Cs gamma source. Scintillation was observed from the lead-iodide based material exposed to low-level gamma irradiation.
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Krishnaprasad Sankar, Krishnaprasad Sankar, Brian A. Akins, Brian A. Akins, Tosifa A. Memon, Tosifa A. Memon, Nathan J Withers, Nathan J Withers, Gennady A. Smolyakov, Gennady A. Smolyakov, Marek Osiński, Marek Osiński, } "Synthesis and characterization of scintillating lead-iodide-based nanocrystals", Proc. SPIE 6866, Colloidal Quantum Dots for Biomedical Applications III, 686604 (13 March 2008); doi: 10.1117/12.784060; https://doi.org/10.1117/12.784060

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