Strategies for Designing Antithermal-Quenching Red Phosphors.

ABSTRACT: Nowadays, red phosphor plays a key role in improving the lighting quality and color rendering index of phosphor-converted white light emitting diodes (w-LEDs). However, the development of thermally stable and highly efficient red phosphor is still a pivotal challenge. Herein, a new strategy to design antithermal-quenching red emission in Eu³⁺, Mn⁴⁺-codoped phosphors is proposed. The photoluminescence intensity of Mg₃Y_{2(1- y )}Ge₃O₁₂:yEu³⁺, Mn⁴⁺ (0 ≤ y ≤ 1) phosphors continuously enhances with rising temperature from 298 to 523 K based on Eu³⁺ → Mn⁴⁺ energy transfer. For Mg₃Eu₂Ge₃O₁₂:Mn⁴⁺

SUBMITTER: Wei Y 

PROVIDER: S-EPMC7175321 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature