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|
|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||= 70.0, 18-05-2020, ArticleFromJournal|
|Publication indicators||= 1; = 1; = 1.0; : 2018 = 1.048; : 2018 = 2.961 (2) - 2018=2.692 (5)|
|Citation count*||1 (2020-07-03)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.