Fe3+-activated magnetoplumbite persistent luminescence phosphor by modulating the oxygen vacancy.
Luminescence
; 39(5): e4762, 2024 May.
Article
em En
| MEDLINE
| ID: mdl-38698695
ABSTRACT
Broadband near-infrared (NIR) spectroscopy has gained significant attention due to its versatile application in various fields. In the realm of NIR phosphors, Fe3+ ion is an excellent activator known for its nontoxic and harmless nature. In this study, we prepared an Fe3+-activated SrGa12O19 (SGO) NIR phosphor and analyzed its phase and luminescence properties. Upon excitation at 326 nm, the SGOFe3+ phosphor exhibited a broadband emission in the range 700-1000 nm, peaking at 816 nm. The optical band gap of SGOFe3+ was evaluated. To enhance the long-lasting phosphorescence, an oxygen vacancy-rich SGOFe3+ (VO-SGOFe3+) sample was prepared for activation. Interestingly, the increase in the oxygen-vacancy concentration indeed contributed to the activation of persistent luminescence of Fe3+ ions. The VO-SGOFe3+ sample has a long duration and high charge storage capacity, allowing it to perform efficiently in various applications. This work provides the foundation for further design of Cr3+-free PersL phosphors with efficient NIR PersL.
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Oxigênio
/
Substâncias Luminescentes
/
Luminescência
Idioma:
En
Revista:
Luminescence
Assunto da revista:
BIOFISICA
/
BIOQUIMICA
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China