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 SM ISO690:2012BORDIAN, Olga, VERLAN, Victor, CULEAC, Ion, BULHAK, Ion, ZUBAREVA, Vera. Managing the luminescence efficiency of the organic compounds of europium(III) through preparation technology. In: Proceedings of SPIE - The International Society for Optical Engineering, 20-23 august 2020, Constanta. Bellingham, USA: SPIE, 2020, Vol.11718, p. 0. ISBN 978-151064271-3. ISSN 0277786X. DOI: https://doi.org/10.1117/12.2571186 |
| EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
 Proceedings of SPIE - The International Society for Optical Engineering Vol.11718, 2020 |
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Conferința "Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X 2020" Constanta, Romania, 20-23 august 2020 | ||||||
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| DOI:https://doi.org/10.1117/12.2571186 | ||||||
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A series of coordination organic compounds based on the trivalent Eu3+ ion were synthesized and optimized: Eu(o- MBA)3phen, Eu(DBM)3(Ph3PO)1·H2O and Eu(TTA)3(Ph3PO)2. The efficiency of the photoluminescence (PL) emission of these coordination compounds depend on preparation technology, specifically on the optimal choice of the ligands. The photoluminescence spectrum measured in the range 500 - 750 nm exhibits a number of narrow (atomic-like) emission bands with the FWHM less than 10 nm. These PL emission bands are attributed to optical transitions 5D0 → 7Fj, j 0.4 in the 4f orbital of the, ion. PL experimental results were analyzed in the framework of Judd-Ofelt theory and the characteristic luminescence parameters were obtained: PL lifetime constant, quantum yield, Ω coefficient, the probability Ai j for electric dipole transitions, etc. |
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| Cuvinte-cheie Coordinating organic compounds, Eu(III), Judd-Ofelt theory, ligands, photoluminescence |
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