Optical analysis of RE³⁺ (Sm or Dy): B₂O₃-P₂O₅-CaF₂-ZnO – (Li₂O/Na₂O/K₂O) glasses

Abstract

This article presents synthesis of mixed boro flouro phosphate glasses doped with trivalent samarium and dysprosium ions by melt quenching technic and the luminescent spectra of the glasses and their modifications by altering alkali oxides. Fourier transform infrared spectroscopy (FTIR) tool is used to detect various functional groups their bonding nature in host glasses .The luminescent spectrum of Sm³⁺ exhibits Orange-Red emission at wavelength of 599 nm due to transition from ⁴G_5/2 →⁶H_7/2 and Dy³⁺ spectrum has shown yellow emission at wavelength of 575 nm from ⁴F_9/2 →⁶H_13/2 by strong excitation at 403 nm and 388 nm ⁶H_5/2 →⁴F_7/2 transition of Samarium (Sm³⁺) ion and ⁶H_15/2→⁴I_13/2 transition of Dysprosium (Dy³⁺) ion respectively. In this article, by altering the three different alkali oxides (Li₂O/Na₂O/K₂O) with the same concentration (0.5%) of Dy³⁺ ions and Sm³⁺. The change in the luminescent intensities were studied.

Keywords:

• Borophosphate glasses
• Sm³⁺ ion and Dy³⁺ ion
• FTIR

Disclosure Statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the CSIR, New Delhi under the sanctioned Research Scheme (No: 03(1358)/16/EMR-II).