Erbium-doped sol-gel derived silica-titania films

Magdalena Zięba; Cuma Tyszkiewicz; Katarzyna Wojtasik; Dominik Dorosz; Paweł Karasiński

doi:10.1117/12.2622299

25 May 2022 Erbium-doped sol-gel derived silica-titania films

Magdalena Zięba, Cuma Tyszkiewicz, Katarzyna Wojtasik, Dominik Dorosz, Paweł Karasiński

Proceedings Volume 12148, Integrated Photonics Platforms II; 1214803 (2022) https://doi.org/10.1117/12.2622299
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

In this paper, we presented the technology of erbium-doped SiO_x:TiO_y films with different concentrations of erbium (0, 2, 4,6 wt.%) were fabricated using the sol-gel method and dip-coating technique. Tetraethyl orthosilicate (Si(OC₂H₅)₄; TEOS) and titania (IV) ethoxide (Ti(OC₂H₅)₄; TET) were used as precursors of silica, and titania, respectively. Erbium(III) nitrate pentahydrate (Er(NO₃)₃·5H₂O) were used as doping sources of Er ions. The influence of erbium concentration on the optical properties were analyzed using monochromatic elipsometry and UV-Vis spectrophotometry. Using the reflectance spectrophotometry method, optical homogeneity of erbium-doped SiO_x:TiO_y films were confirmed. The optical band gaps (E_g) were estimated from UV-Vis spectrophotometry. The results indicates to slight decrease in crystallite size of erbium-doped SiO_x:TiO_y films with increasing erbium concentration. Photoluminescence properties in visible region of erbium-doped SiO_x:TiO_y films have been demonstrated.

Conference Presentation

Citation Download Citation

Magdalena Zięba, Cuma Tyszkiewicz, Katarzyna Wojtasik, Dominik Dorosz, and Paweł Karasiński "Erbium-doped sol-gel derived silica-titania films", Proc. SPIE 12148, Integrated Photonics Platforms II, 1214803 (25 May 2022); https://doi.org/10.1117/12.2622299

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