Probing structure of ytterbium stabilized Pr-doped zirconia obtained by microwave hydrothermal method. Issue 19 (1st October 2021)

• Record Type: Journal Article
• Authors: Rosowska, J.; Kaszewski, J.; Witkowski, B.; Wachnicki, Ł.; Godlewski, M.
• Is Part Of: Ceramics international. Volume 47:Issue 19(2021)
• Page Start: 26748
• Page End: 26757
• Publication Date: 2021-10-01
• Subjects: Microwave hydrothermal method -- ZrO2 nanoparticles -- Photoluminescence -- ZrO2:Pr -- Yb; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2021.06.083
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Nanoparticles of ZrO2 :Pr stabilized with ytterbium in the range 0.5%mol.-20%mol. were synthesized. Crystallite sizes depended on Yb concentration. Red luminescence resulting from 1 D2 → 3 H4 transition of Pr 3+ is present in all the samples. Additionally in the samples calcined at 1200 °C blue-green luminescence from 3 P0 level of Pr 3+ was found. This emission was more intense than red one. Intensity of the 3 P0 → 3 H4 luminescence depended on ytterbium content and was found to be the highest at 20% mol. Yb. Luminescence study had shown, that ytterbium introduced additional lattice defects. Some quantity of praseodymium activator ions were found to be present at +4 state and changed its valence to +3 as ytterbium content had risen.