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Title: Photoluminescence of Ce3+ and Eu2+ in low-P ternesite from the Negev Desert, Israel
Authors: Czaja, Maria
Stasiak, Marta
Mazurak, Zbigniew
Keywords: Ce3+; Eu2+; Larnite–ye’elimite rock; Photoluminescence; Ternesite
Issue Date: 2017
Citation: Physics and Chemistry of Minerals, Vol. 44, Iss. 8, s. 553-559
Abstract: For the first time, the photoluminescence of ions of Ce3+ and Eu2+ in natural low-P ternesite has been measured. The emission bands of Ce3+ ions at 405, 426, and 440 nm and the corresponding excitation wavelengths suggest the presence of Ce3+ ions in three different cationic sites. In the photoluminescence spectra of Eu2+, emission bands at 530 and 620 nm can be seen that originate from two different cationic sites. In addition, it is demonstrated that an energy transfer occurs between Ce3+ and Eu2+ ions situated in those cationic sites where the force of the crystallic field is weakest. The photoluminescence spectra were obtained for a thin section sample with low contents of these two elements (41.2 ppm Ce, 2.11 ppm Eu).
DOI: 10.1007/s00269-017-0882-5
ISSN: 0342-1791
Appears in Collections:Artykuły (WNP)

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