0533095 - FZÚ 2021 RIV US eng J - Journal Article
Jarý, Vítězslav - Havlák, Lubomír - Bárta, Jan - Buryi, Maksym - Rejman, M. - Pokorný, Martin - Dujardin, Ch. - Ledoux, G. - Nikl, Martin
Variability of Eu²⁺ emission features in multicomponent alkali-metal-rare-earth sulfides.
ECS Journal of Solid State Science and Technology. Roč. 9, č. 1 (2020), s. 1-10, č. článku 016007. ISSN 2162-8769. E-ISSN 2162-8777
R&D Projects: GA MŠMT(CZ) EF16_019/0000760; GA MŠMT(CZ) LO1409
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : alkali-metal-rare-earth sulfides * Eu²⁺ * photoluminescence * XRD * EPR * XRF
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 2.070, year: 2020
Method of publishing: Open access

Optical properties connected to the Eu2+ emission center present in the ARES2:0.05%Eu (A = Rb, K, Na, RE = La, Gd, Lu, Y) hosts, including photoluminescence excitation and emission spectra as well as the overall emission spectra of circadian light source, were measured by means of luminescence spectroscopy using either PMT or CCD as detection elements. Electron paramagnetic resonance (EPR) was utilized in order to understand the mechanism of the Eu2+ ions incorporation into the ARES2 structure. Important parameters connected to phosphors to be used in solid state white LED technology, such as x,y coordinates in the CIE color space, color correlated temperature (CCT), color rendering index (CRI) and color quality scale (CQS) were calculated from the experimentally obtained emission spectra.
Permanent Link: http://hdl.handle.net/11104/0311583