Colour tunable photoluminescence studies of Dy3+/Eu3+ co-doped BaPbAlFB glasses for epoxy-free w-LED applications.
Spectrochim Acta A Mol Biomol Spectrosc
; 320: 124438, 2024 Nov 05.
Article
en En
| MEDLINE
| ID: mdl-38901237
ABSTRACT
Barium lead alumino fluoroborate (BaPbAlFB) glasses singly and co-doped with Dy3+ and Eu3+ ions were prepared by melt quench method and studied their photoluminescence (PL) properties along with energy migration. Singly doped Dy3+/Eu3+ ions in BaPbAlFB glasses under 365 and 393 nm excitation wavelengths emit the PL bands through Dy (4F9/2 â 6H15/2 and 4F9/2 â 6H13/2) and Eu (5D0â7F2) transitions located at (Dy 483 and 575 nm) and (Eu 613 nm) respectively. Further, tunability of PL emissions is achieved by exciting the Dy3+/Eu3+ co-doped BaPbAlFB glasses at various wavelengths. The obtained CIE (0.34, 0.33) and CCT value (5080.4 K) of Dy3+/Eu3+ co-doped BaPbAlFB glass produced white light emission under 365 nm excitation wavelength. The corresponding CCT values of Dy3+/Eu3+ co-doped BaPbAlFB glasses varied from 1580 to 5080 K and their corresponding color emission changes from intense red to white light regime quite suitable for fabrication of epoxy-free w-LED devices.
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Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Spectrochim Acta A Mol Biomol Spectrosc
Asunto de la revista:
BIOLOGIA MOLECULAR
Año:
2024
Tipo del documento:
Article
País de afiliación:
India