Power dependent photoacoustic and photoluminescence studies on a Ho³⁺/Yb³⁺ doped Y₂O₃ phosphor.

ABSTRACT: The Ho³⁺/Yb³⁺ doped Y₂O₃ phosphor samples were synthesized through a combustion method and then were annealed at 800 °C, 1000 °C, and 1200 °C. The cubic phase of the synthesized samples was confirmed by XRD analysis. The upconversion (UC) & photoacoustic (PA) spectroscopic studies were done on prepared samples and both spectra are compared. The samples have shown intense green upconversion emission at 551 nm due to the ⁵S₂ → ⁵I₈ transition of Ho³⁺ ion along with other bands. The maximum emission intensity is obtained for the sample annealed at 1000 °C for 2 hours. The authors have also measured the lifetime corresponding to ⁵S₂ → ⁵I₈ transition and

SUBMITTER: Sarkar MI 

PROVIDER: S-EPMC10126742 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature