Enhanced Pr3+ photoluminescence by energy transfer in SrF2 : Eu2+, Pr3+ phosphor | Zendy

M.Y.A. Yagoub | Zendy; H.C. Swart | Zendy; Peder Bergman | Zendy; E. Coetsee | Zendy

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Enhanced Pr3+ photoluminescence by energy transfer in SrF2 : Eu2+, Pr3+ phosphor

Author(s) -

M.Y.A. Yagoub,

H.C. Swart,

Peder Bergman,

E. Coetsee

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4941833

Subject(s) - photoluminescence , phosphor , x ray photoelectron spectroscopy , ion , quenching (fluorescence) , materials science , scanning electron microscope , analytical chemistry (journal) , spectroscopy , photoluminescence excitation , chemistry , fluorescence , optoelectronics , nuclear magnetic resonance , optics , physics , organic chemistry , chromatography , quantum mechanics , composite material

Efficient energy transfer was demonstrated in the SrF2:Eu2+, Pr3+ phosphor synthesized by the co-precipitation method. Results obtained with X-ray diffraction (XRD), scanning electron microscopy (SEM), x-ray spectroscopy (XPS), photoluminescence (PL) and decay curves proposed the UV-Vis energy transfer process. The energy transfer process between the Eu2+ and Pr3+ ions in SrF2 was investigated to evaluate the potential of the Eu2+ ion as a sensitizer for the Pr3+ ion. The results proposed that Eu2+ could be a good sensitizer for absorbing the UV photons and efficiently enhancing the Pr3+ emission intensity. The energy transfer process was effective until concentration quenching for the Pr3+ ions occurred. The concentration quenching was attributed to cross-relaxation between the Pr3+ ions. (C) 2016 Author(s).

Funding Agencies|South African Research Chairs Initiative of the Department of Science and Technology; National Research Foundation of South Africa; National Research Foundation (NRF); Cluster program of the University of the Free State

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