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Analysis of electron–vibrational interaction in interconfigurational 5d➔4f transition of Eu 2 + ions in Na 5 Ca 4 (PO 4 ) 4 F
Author(s) -
Bhoyar Priyanka D.,
Dhoble S.J.
Publication year - 2016
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.3151
Subject(s) - photoluminescence , phosphor , phonon , stokes shift , spectral line , ion , dopant , atomic physics , emission spectrum , atomic electron transition , electron , line (geometry) , chemistry , analytical chemistry (journal) , luminescence , physics , condensed matter physics , doping , optics , nuclear physics , geometry , mathematics , organic chemistry , astronomy , chromatography
In this paper, the photoluminescence properties of Eu 2+ ‐activated greenish‐blue‐emitting halophosphate phosphor Na 5 Ca 4 (PO 4 ) 4 F were studied to estimate electron–vibrational interaction (EVI) parameters such as the Huang–Rhys factor, effective phonon energy, Stokes shift and zero phonon line (ZPL) position for various concentrations of dopant. The validity of the results was established by modeling the emission spectra, which was found to be in good agreement with the experimental photoluminescence spectra. Copyright © 2016 John Wiley & Sons, Ltd.