Synthesis and characterization of Ho3+ and Ho3+: Yb3+ embedded silica–titania nanocomposites: structural and optical properties

Document Type : Original Article

Authors

1 Physics Department, Faculty of women for Arts, Science and Education, Ain Shams University, Cairo, Egypt,

2 Laser sciences and Interactions department, National Institute of Laser Enhanced Sciences (NILES), Cairo University, Egypt

3 Solid State Physics Department, Physics Research Institute, National Research Centre, Dokki, Giza 12622, Egypt, Affiliation ID: 60014618.

Abstract

Ho3+: Yb3+ ions doped highly transparent SiO2- TiO2 nano-composite were successfully fabricated in the forms of monolith and thin films. the preparations were carried out via a modified sol-gel method at different annealing temperatures ranging from 500oC up to 1000oC for 3h. The structural and optical properties were determined by XRD, FESEM, 3D laser Raman and FTIR spectroscopy. The thickness of the thin film sample doped with 0.4 mol % of Ho3+ ions and co-doped with 0.5mol % of Yb3+ was measured 1.3 m using the cross-section Field emission scanning electron microscopy (FESEM) technique. These results suggest that the Ho3+: Yb3+ silica-titania are promising candidates for photonic devices.

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Egyptian Journal of Chemistry
Volume 65, Issue 132 - Serial Number 13
Special Issue: Chemistry and Global Challenges (Part B)
December 2022
Pages 941-948

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History

  • Receive Date: 11 August 2022
  • Revise Date: 19 August 2022
  • Accept Date: 31 August 2022

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