Photoluminescence in Er-doped 0.4Na1/2Bi1/2TiO3-(0.6-x)SrTiO3-xPbTiO3 solid solutions. (25th October 2020)

• Record Type: Journal Article
• Authors: Dunce, Marija; Birks, Eriks; Antonova, Maija; Ignatans, Reinis; Nitiss, Edgars; Kundzinsh, Maris; Grube, Jurgis; Sarakovskis, Anatolijs; Sternberg, Andris
• Is Part Of: Ferroelectrics. Volume 567(2020)
• Page Start: 150
• Page End: 159
• Publication Date: 2020-10-25
• Subjects: NBT solid solutions -- luminescence -- Er-doped; Ferroelectricity -- Periodicals; Ferroelectric crystals -- Periodicals; 537
• DOI: 10.1080/00150193.2020.1791599
• Languages: English
• ISSNs: 0015-0193

Abstract

Abstract: Photoluminescence and optical second harmonic generation in Er-doped 0.4Na0.5 Bi0.5 TiO3 -(0.6- x )SrTiO3 - x PbTiO3 solid solutions is studied. Earlier, it was shown that upon increasing of PbTiO3 concentration transfer from relaxor to ferroelectric state takes place in these compositions. Here, role of PbTiO3 and Er concentration on stability of the ferroelectric state is evaluated, taking into account that luminescence, contrary to X-ray diffraction patterns and second harmonic intensity, is sensitive just to local environment around Er 3+ ions. Luminescence spectra at low temperatures are measured in order to detect variations of local environment in comparison with Er-doped Na0.5 Bi0.5 TiO3 .