A crystal defect led zero thermal quenching β-NaYF₄ : Eu³⁺,Dy³⁺ red emitting phosphor.

ABSTRACT: Red-light phosphors with extraordinary and stable thermal luminous properties must urgently be explored under the circumstances that commercial phosphors are suffering from serious thermal quenching effects and a lack of red-light components. Synthesized by a one-step hydrothermal method, a new type of NaYF₄ : 0.065Eu³⁺,0.003Dy³⁺ phosphor with notable thermal luminous stability is reported in this study. As well as energy transfer between Dy³⁺ and Eu³⁺, this novel red-light phosphor manifests zero thermal quenching (ZTQ) performance under an increasing temperature of measurement. The ZTQ property stems from the interior defects of the crystal produced by the non-equivalence replacement between distinct ions. Density Functional Theory (

SUBMITTER: Ling S 

PROVIDER: S-EPMC9610441 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature