Synthesis and Characterization of CaYSi<sub>2</sub>Al<sub>2</sub>O<sub>2</sub>N<sub>5</sub>:Eu<sup>2+</sup>
Eu<sup>2+</sup>-activated CaYSi<sub>2</sub>Al<sub>2</sub>O<sub>2</sub>N<sub>5</sub> phosphors have been prepared by the modified three-step solid-state diffusion method. Prepared phosphors are characterized by XRD, SEM, photoluminescence techniques, and chromatic properties. Upon excitation at 330 nm, the Eu<sup>2+</sup>-activated CaYSi<sub>2</sub>Al<sub>2</sub>O<sub>2</sub>N<sub>5</sub> phosphor shows a single strong broad emission at 455 nm in the blue region of the optical spectrum. The variation of intensity with dopant concentration was studied, and the quenching was observed at 1 mol%. The Stokes shift is also calculated. It was found that the obtained samples may be suitable for UV-excited white light-emitting diodes.
Authors
- Anoop P. Fartode (ORCID: https://orcid.org/0000-0001-6835-9659)
- S.J. Dhoble (ORCID: https://orcid.org/0000-0002-4249-8228)
- Tushar R. Shelke
- S. A. Fartode (ORCID: https://orcid.org/0000-0002-6170-092X)
Institutions
- Rashtrasant Tukadoji Maharaj Nagpur University (IN)
- Yashwantrao Chavan Maharashtra Open University (IN)
Publication Details
- Journal
- Luminescence
- Published
- 2025-03-01
- DOI
- https://doi.org/10.1002/bio.70140
- Primary Topic
- Luminescence Properties of Advanced Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00