{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,25]],"date-time":"2026-07-25T17:55:18Z","timestamp":1785002118148,"version":"3.55.0"},"reference-count":63,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2015,10,13]],"date-time":"2015-10-13T00:00:00Z","timestamp":1444694400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Eu-doped ternary sulfides of general formula ALnS2 (A = Na, K, Rb; Ln = La, Gd, Lu, Y) are presented as a novel interesting material family which may find usage as X-ray phosphors or solid state white light emitting diode (LED) lighting. Samples were synthesized in the form of transparent crystalline hexagonal platelets by chemical reaction under the flow of hydrogen sulfide. Their physical properties were investigated by means of X-ray diffraction, time-resolved photoluminescence spectroscopy, electron paramagnetic resonance, and X-ray excited fluorescence. Corresponding characteristics, including absorption, radioluminescence, photoluminescence excitation and emission spectra, and decay kinetics curves, were measured and evaluated in a broad temperature range (8\u2013800 K). Calculations including quantum local crystal field potential and spin-Hamiltonian for a paramagnetic particle in D3d local symmetry and phenomenological model dealing with excited state dynamics were performed to explain the experimentally observed features. Based on the results, an energy diagram of lanthanide energy levels in KLuS2 is proposed. Color model xy-coordinates are used to compare effects of dopants on the resulting spectrum. The application potential of the mentioned compounds in the field of white LED solid state lighting or X-ray phosphors is thoroughly discussed.<\/jats:p>","DOI":"10.3390\/ma8105348","type":"journal-article","created":{"date-parts":[[2015,10,14]],"date-time":"2015-10-14T02:36:30Z","timestamp":1444790190000},"page":"6978-6998","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":51,"title":["Optical, Structural and Paramagnetic Properties of  Eu-Doped Ternary Sulfides ALnS2 (A = Na, K, Rb;  Ln = La, Gd, Lu, Y)"],"prefix":"10.3390","volume":"8","author":[{"given":"V\u00edt\u011bzslav","family":"Jar\u00fd","sequence":"first","affiliation":[{"name":"Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 1999\/2, Praha 8 18221,  Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lubom\u00edr","family":"Havl\u00e1k","sequence":"additional","affiliation":[{"name":"Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 1999\/2, Praha 8 18221,  Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan","family":"B\u00e1rta","sequence":"additional","affiliation":[{"name":"Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, Praha 1 11519, Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maksym","family":"Buryi","sequence":"additional","affiliation":[{"name":"Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 1999\/2, Praha 8 18221,  Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eva","family":"Mih\u00f3kov\u00e1","sequence":"additional","affiliation":[{"name":"Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 1999\/2, Praha 8 18221,  Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martin","family":"Rejman","sequence":"additional","affiliation":[{"name":"Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 1999\/2, Praha 8 18221,  Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Valentin","family":"Laguta","sequence":"additional","affiliation":[{"name":"Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 1999\/2, Praha 8 18221,  Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martin","family":"Nikl","sequence":"additional","affiliation":[{"name":"Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 1999\/2, Praha 8 18221,  Czech Republic"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2015,10,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2834","DOI":"10.3390\/ma3042834","article-title":"Luminescence in Sulfides: A Rich History and a Bright Future","volume":"3","author":"Smet","year":"2010","journal-title":"Materials"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1954","DOI":"10.1063\/1.110612","article-title":"IIA-III2-S4 ternary compounds: New host matrices for full color thin film electroluminescence displays","volume":"63","author":"Benalloul","year":"1993","journal-title":"Appl. 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