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Exploration of electron–vibrational interaction in the 5d states of Eu 2 + ions in ABaPO 4 (A = Li, Na, K and Rb) phosphors
Author(s) -
Nair Govind B.,
Bhoyar P. D.,
Dhoble S. J.
Publication year - 2017
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.3143
Subject(s) - ion , photoluminescence , phosphor , atomic physics , emission spectrum , phonon , electron , chemistry , stokes shift , physics , analytical chemistry (journal) , spectral line , luminescence , condensed matter physics , optics , nuclear physics , organic chemistry , chromatography , astronomy
This work reports the theoretical analysis of the electron–vibrational interaction (EVI) in 4f–5d optical transitions of Eu 2 + ions in ABaPO 4 (A = Li, Na, K and Rb) systems. The EVI parameters were estimated from the recently reported room temperature photoluminescence results, by employing the spectrum‐fitting method. Parameters such as the Huang–Rhys factor, effective phonon energy, Stokes shift and zero‐phonon line position were estimated and are reported here. The estimated EVI parameters were validated by modeling the emission band and establishing the agreement between the experimental and modeled emission bands. Copyright © 2016 John Wiley & Sons, Ltd.