X-ray-charged bright persistent luminescence in NaYF₄:Ln³⁺@NaYF₄ nanoparticles for multidimensional optical information storage.

ABSTRACT: NaYF₄:Ln³⁺, due to its outstanding upconversion characteristics, has become one of the most important luminescent nanomaterials in biological imaging, optical information storage, and anticounterfeiting applications. However, the large specific surface area of NaYF₄:Ln³⁺ nanoparticles generally leads to serious nonradiative transitions, which may greatly hinder the discovery of new optical functionality with promising applications. In this paper, we report that monodispersed nanoscale NaYF₄:Ln³⁺, unexpectedly, can also be an excellent persistent luminescent (PersL) material. The NaYF₄:Ln³⁺ nanoparticles with surface-passivated core-shell structures exhibit intense X-ray-charged PersL and narrow-band emi

SUBMITTER: Zhuang Y 

PROVIDER: S-EPMC8222364 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature