Europium doping in monoclinic KYb(WO4)2 crystal

We report on a detailed spectroscopic study of Eu3+ ions in the monoclinic KYb(WO4)2 crystal. The polarized room and low-temperature absorption spectra are measured. The maximum σabs corresponding to the 7F1 → 5D1 transition is 1.32×10–20cm2 at 534.2nm with a bandwidth of 0.7nm (for E||Nm). The Star...

Full description

Saved in:
Bibliographic Details
Published in:Journal of luminescence 2017-03, Vol.183, p.217-225
Main Authors: Loiko, P.A., Vilejshikova, E.V., Mateos, X., Serres, J.M., Dunina, E.B., Kornienko, A.A., Yumashev, K.V., Aguiló, M., Díaz, F.
Format: Article
Language:English
Subjects:
Absorption
Double tungstates
Europium
Luminescence
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report on a detailed spectroscopic study of Eu3+ ions in the monoclinic KYb(WO4)2 crystal. The polarized room and low-temperature absorption spectra are measured. The maximum σabs corresponding to the 7F1 → 5D1 transition is 1.32×10–20cm2 at 534.2nm with a bandwidth of 0.7nm (for E||Nm). The Stark sub-levels of the excited mulitplets are determined. A Judd-Ofelt analysis is applied to the Eu3+:KYb(WO4)2 crystal to determine the probability of spontaneous transitions, radiative lifetimes and luminescence branching ratios. Within the strong configuration interaction (SCI) approximation, the intensity parameters are Ω2=4.757, Ω4=2.295, Ω6=1.644 [10–20cm2] and Δf=50160cm–1. The radiative lifetime of the 5D0 state is 351 µs. The maximum stimulated-emission cross-section corresponding to the 7F1 → 5D1 transition is 1.44×10–20cm2 at 703.2nm (for E||Nm). Under UV excitation, the Eu3+:KYb(WO4)2 crystal provides intense red photoluminescence with CIE coordinates, x=0.675, y=0.325.
ISSN:0022-2313
1872-7883
DOI:10.1016/j.jlumin.2016.11.046