Absorption intensity analysis and emission properties KEu(PO3)4 and KEuxY1-x(PO3)4 crystals

Michał Malinowski , Marcin Piotr Kaczkan

Abstract

Optical absorption, excitation and emission spectra of Eu3+ ions in stoichiometric KEu(PO3)4 and KEuxY1-x(PO3)4 crystals were investigated. Strong, red emissions of Eu3+ centered at 617 and 700 nm originates mainly from the 5D0 →7F2+7F4 transitions respectively. Judd-Ofelt intensity parameters for f-f transitions were derived from the emission spectra and also from the integrated absorption spectra. These parameters were used to calculate the radiative transition rates (AR), lifetimes (τR) and branching ratios β for 5D0 excited state of Eu3+. The calculated values of τR and β were compared with the measured values for 5D0 level. The 5D0 fluorescence decay time in pure KEu(PO3)4 was exponential and quite long, of 3.93 ms. The stimulated emission cross-sections σ were also evaluated for the 5D0 → 7FJ transitions for the first time in this system.
Author Michał Malinowski (FEIT / MO)
Michał Malinowski,,
- The Institute of Microelectronics and Optoelectronics
, Marcin Piotr Kaczkan (FEIT / MO)
Marcin Piotr Kaczkan,,
- The Institute of Microelectronics and Optoelectronics
Journal seriesJournal of Luminescence, ISSN 0022-2313, (A 35 pkt)
Issue year2019
Vol211
NoJuly
Pages138-143
Publication size in sheets0.5
Keywords in EnglishRare-earth ions; Eu3+ ion; Optical properties; KEu(PO3)4 crystal; Judd-Ofelt analysis; Laser spectroscopy
ASJC Classification3104 Condensed Matter Physics; 1303 Biochemistry; 1600 General Chemistry; 3107 Atomic and Molecular Physics, and Optics; 1304 Biophysics
DOIDOI:10.1016/j.jlumin.2019.03.032
URL https://www.sciencedirect.com/science/article/pii/S0022231318313899?via%3Dihub
projectThe Development of Design, Processing and Testing Methods of the Electronic Devices and Materials for Microelectronics and Optoelectronics. Project leader: Szczepański Paweł, , Phone: (48 22) 234 58 70, start date 01-01-2015, planned end date 31-12-2015, end date 31-05-2016, IMiO/2015/STATUT/1, Implemented
WEiTI Działalność statutowa
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 35.0, 13-05-2019, ArticleFromJournal
Ministerial score (2013-2016) = 35.0, 29-03-2019, ArticleFromJournal
Publication indicators Scopus Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.14; WoS Impact Factor: 2017 = 2.732 (2) - 2017=2.577 (5)
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