Designing Ultra-Narrow-Band Red Phosphor via Oxygen Vacancy Engineering for Transparent Display Application.

ABSTRACT: Narrow-band red phosphors have been crucial in enabling energy-efficient and wide color gamut display technologies. Developing novel red phosphors with narrower FWHM and suitable positions is still an urgent demand. Herein, a nanorod-shaped Nb₂O₅:Pr³⁺ phosphor, featuring a single ultra-narrow-band red emission at 612 nm with FWHM of only 19 nm, is reported. The single narrow-band is associated with oxygen vacancies, which can influence the electron-hole recombination energy. Besides, the intensity of PL spectra presents anti-thermal properties and achieves an unexpected 12.5-fold enhancement from 80 to 280 K. Detailed structural analyses, optical measurements, and DFT calculation are used to investigate abnormal photophysical processes. It canbe found that

SUBMITTER: Wang W 

PROVIDER: S-EPMC11984928 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature