Visible to infrared low temperature luminescence of Er(3+), Nd(3+) and Sm(3+) in CaSnO3 phosphors

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
V Orsi GordoN Can

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 10-300K. PL peaks at 490, 546, 656, 696, 894, 1065, and 1344nm 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 714nm were detected for the CaSnO3:Sm(3+). The strongest one, observed at 600nm, was associated to (4)G5/2→(6)H7/2 of Sm(3). Emission lines at 528, 548, 662 at 852nm were also seen for CaSnO3:Er(3+) and correspond to Er(3+) intra-4f(n) shell transitions. In addition, at low temperatures, a stark splitting of the 4f electron energy levels of the Er(3+) ions were observed in infrared region (1520-1558nm) and assigned to the transition between the (4)I13/2 state and the (4)I15/2 state. Finally, our results show that the rare earth doped CaSnO3 has remarkable potential for applications as optical material since ...Continue Reading

References

Sep 15, 2007·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·G Seeta Rama Raju, S Buddhudu
Mar 11, 2010·Advanced Materials·Kiran T KamtekarMartin R Bryce

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Citations

Nov 18, 2015·Analytical Chemistry·Noureen SirajIsiah M Warner
Jan 14, 2017·Journal of Fluorescence·Mete Kaan EkmekçiMehmet Ayvacıklı
Aug 3, 2018·Physical Chemistry Chemical Physics : PCCP·Jefferson MaulAlessandro Erba

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