The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2020
Filed:
May. 03, 2018
University of Tennessee Research Foundation, Knoxville, TN (US);
Yuntao Wu, Knoxville, TN (US);
Mariya Zhuravleva, Knoxville, TN (US);
Luis Stand, Knoxville, TN (US);
Charles L. Melcher, Oak Ridge, TN (US);
University of Tennessee Research Foundation, Knoxville, TN (US);
Abstract
Metal halide optical materials (e.g., scintillator materials or persistent phosphors) are described. More particularly, the optical materials include codoped perovskite-type halides, wherein the codoping ion is present at a molar ratio of 5000 parts per million (ppm) or less with respect to all cations. For example, the optical material can be a codoped trihalide having the formula ABXwhere A is one or more alkali metal, B is one or more alkali earth metal, and X is one or more halide that is doped with up to about 10 atomic percent of a dopant ion and codoped with up to about 5000 ppm of one or more isovalent or aliovalent codopant ion, such as a tetravalent ion (e.g., Zr), a trivalent ion (e.g., Sc, Y, Gd, or Laion) or a divalent ion (e.g., Mg). The codoped material can have modified afterglow compared to a noncodoped material.