Nanophosphors for large area radiation detectors
View Patent ↗Nanophosphor compositions were prepared. The compositions can be used for radiation detection.
1. A method for preparing a lanthanide halide nanophosphor, comprising:
preparing a first solution comprising at least one lanthanide triflate precursor dissolved in an ionic liquid solvent that is a good solvent for the at least one soluble lanthanide triflate complex but a poor solvent for the lanthanide halide nanophosphor, and
adding the first solution dropwise to a second solution of a source of acidic halide under conditions suitable for a chemical reaction to occur that results in a product that comprises a lanthanide halide nanophosphor.
2. The method of claim 1 , further comprising:
washing the product with a liquid to form a slurry, and
subjecting the slurry to centrifugation, whereby the liquid used for washing the slurry separates during centrifugation as a supernatant above a solid that comprises the lanthanide halide nanophosphor.
3. The method of claim 1 , wherein the at least one lanthanide triflate precursor is at least one selected from lanthanum triflate and cerium triflate.
4. The method of claim 1 , wherein the source of acidic halide is selected from cetyltrimethylammonium bromide and N-butyl-N-methylpyrrolidinium bromide.