Visible to infrared low temperature luminescence of Er3+, Nd3+ and Sm3+ in CaSnO3 phosphors. (May 2015)

• Record Type: Journal Article
• Authors: Orsi Gordo, V.; Tuncer Arslanli, Y.; Canimoglu, A.; Ayvacikli, M.; Galvão Gobato, Y.; Henini, M.; Can, N.
• Is Part Of: Applied radiation and isotopes. Volume 99(2015:May)
• Page Start: 69
• Page End: 76
• Publication Date: 2015-05
• Subjects: CaSnO3 -- Rare earth -- Low temperature -- Photoluminescence; Radiology -- Periodicals; Radiation -- Industrial applications -- Periodicals; Nuclear chemistry -- Periodicals; Internet resource; Periodical; 660.298
• DOI: 10.1016/j.apradiso.2015.02.019
• Languages: English
• ISSNs: 0969-8043

Abstract

Abstract: Novel stannate phosphor, orthorhombic CaSnO3 phosphors doped with Er 3+, Nd 3+ and Sm 3+ have been synthesized by a conventional solid-state method under N2 +H2 gas flow. Visible and near-infrared photoluminescence (PL) properties were investigated as function of laser power and temperature. It was observed that all dopant ions are well incorporated in CaSnO3 and are responsible for the optical emission in the temperature range of 10–300 K. PL peaks at 490, 546, 656, 696, 894, 1065, and 1344 nm were observed for the CaSnO3 :Nd 3+ phosphor and associated to f – f transition of Nd 3+ ion. Emissions at 564, 600–607, 646–656 and 714 nm were detected for the CaSnO3 :Sm 3+ . The strongest one, observed at 600 nm, was associated to 4 G 5/2 → 6 H 7/2 of Sm 3 . Emission lines at 528, 548, 662 at 852 nm were also seen for CaSnO3 :Er 3+ and correspond to Er 3+ intra-4 f n shell transitions. In addition, at low temperatures, a stark splitting of the 4 f electron energy levels of the Er 3+ ions were observed in infrared region (1520–1558 nm) and assigned to the transition between the 4 I 13/2 state and the 4 I 15/2 state. Finally, our results show that the rare earth doped CaSnO3 has remarkable potential for applications as optical material since it exhibits efficient and sharp emissions due to rare earth ions. Graphical abstract: Highlights: Characteristic and photoluminescence properties have been investigated. Several sharp and strong emission bands due to rare earth ions were observed. The nature of the interaction between host and the activator ions were discussed.