Core-shell nanoparticle and method of generating an optical signal using the same
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United States of America Patent
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Nov 1, 2016
Grant Date -
May 5, 2016
app pub date -
Nov 4, 2015
filing date -
Nov 4, 2014
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Abstract
A core-shell nanoparticle is provided. The core-shell nanoparticle has a core comprising a metal fluoride doped with a first sensitizer and a shell surrounding the core, wherein the shell comprises a first layer comprising the metal fluoride doped with a second sensitizer and a first activator, and a second layer comprising the metal fluoride doped with a third sensitizer and a second activator, wherein the first activator and the second activator are different, and each is independently selected from the group consisting of Tm3+, Ho3+, and combinations thereof. A method of generating an optical signal using the core-shell nanoparticle and a method of preparing the core-shell nanoparticle is also provided.
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