Absorption intensity analysis and emission properties KEu(PO3)4 and KEuxY1-x(PO3)4 crystals
Michał Malinowski , Marcin Piotr Kaczkan
AbstractOptical 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.
|Journal series||Journal of Luminescence, ISSN 0022-2313, (A 35 pkt)|
|Publication size in sheets||0.5|
|Keywords in English||Rare-earth ions; Eu3+ ion; Optical properties; KEu(PO3)4 crystal; Judd-Ofelt analysis; Laser spectroscopy|
|ASJC Classification||; ; ; ;|
|project||The 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
|Score|| = 35.0, 13-05-2019, ArticleFromJournal|
= 35.0, 29-03-2019, ArticleFromJournal
|Publication indicators||= 0; : 2016 = 1.14; : 2017 = 2.732 (2) - 2017=2.577 (5)|
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