Diffusing Mn⁴⁺ into Dy³⁺ Doped SrAl₂O₄ for Full-Color Tunable Emissions.

ABSTRACT: Dy³⁺ and Mn⁴⁺ codoped SrAl₂O₄ (SrAl₂O₄:Dy³⁺,Mn⁴⁺) phosphors were obtained by diffusing Mn⁴⁺ ions into Dy³⁺-doped SrAl₂O₄ via the constant-source diffusion technique. The influences of diffusion temperature and diffusion time on the emissions of SrAl₂O₄:Dy³⁺,Mn⁴⁺ were investigated. It was found that: (i) efficient red emission peaking at 651 nm can be readily achieved for SrAl₂O₄:Dy³⁺ by simply diffusing Mn⁴⁺ into SrAl₂O₄:Dy³⁺ at 800 °C and above; (ii) the red emission of Mn⁴⁺ becomes dominant over the characteristic emissions of D

SUBMITTER: Zhai BG 

PROVIDER: S-EPMC9696492 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature