Photoluminescence of Er/Yb-doped zinc-silicate glass and glass ceramics with ZnO and Zn2SiO4 nanoparticles

0560330 - ÚFE 2023 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Vařák, Petr - Baborák, J. - Cajzl, J. - Nekvindová, P.
Photoluminescence of Er/Yb-doped zinc-silicate glass and glass ceramics with ZnO and Zn2SiO4 nanoparticles.
Proceedings of SPIE. In: FIBER LASERS AND GLASS PHOTONICS: MATERIALS THROUGH APPLICATIONS III. Vol. 12142. Bellingham: SPIE, 2022 - (Ferrari, M.; Seddon, A.; Taccheo, S.), Roč. 12142 (2022), č. článku 1214213. ISBN 978-1-5106-5160-9. ISSN 0277-786X. E-ISSN 1996-756X.
[Conference on Fiber Lasers and Glass Photonics - Materials through Applications III Part of SPIE Photonics Europe Conference. ELECTR NETWORK (FR), 03.04.2022-20.05.2022]
Institucionální podpora: RVO:67985882
Klíčová slova: Erbium * glass * glass-ceramics * zinc * silicate * zinc oxide * willemite
Obor OECD: Electrical and electronic engineering
https://doi.org/10.1117/12.2620488

Zinc-silicate glass-ceramic materials based on ZnO and Zn2SiO4 nanoparticles distributed in amorphous silica matrix represent one of the most perspective options to improve the photoluminescence properties of Er3+ ions, thanks to their low phonon energy and the possibility of energy transfer between the ZnO/Zn2SiO4 nanoparticles and Er3+ ions. In this paper, we focus on the investigation of crystallization in the sodium- and potassium-zinc-silicate system and the photoluminescence properties of Er3+-doped glass-ceramic materials. It was found that the presence of Na2O promotes the crystallization of Zn2SiO4 resulting in non-transparent glass-ceramic material at 750 degrees C, whereas the K2O-ZnO-SiO2 material remained transparent in the entire heat treatment range. Nevertheless, the crystallization of ZnO and Zn2SiO4 leads to an increase of photoluminescence intensity of Er3+ ions by up to 300 % compared to the pre-cursor glass. The Stark-splitting of the Er3+ emission spectra at 1.5 mu m after 978 nm excitation as well as shortening of the fluorescence lifetime suggest the incorporation of Er3+ ions inside the highly symmetric environment of ZnO and Zn2SiO4.
Trvalý link: https://hdl.handle.net/11104/0333478