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 SM ISO690:2012BORDIAN, Olga. Photoluminescence proprietes of the nanocomposites PEPC/Eu(o-MBA)3Phen and PEPC/Eu(TTA)3 (Ph3PO)2. In: Advances in Intelligent Systems and Computing, 25-28 septembrie 2017, Iași. Dusseldorf, Germania: Springer Verlag, 2018, Ediția a 16-a, Vol. 660, pp. 128-134. ISSN 21945357. DOI: https://doi.org/10.1007/978-3-319-67459-9_17 |
| EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
| Advances in Intelligent Systems and Computing Ediția a 16-a, Vol. 660, 2018 |
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Conferința "16th International Conference on Global Research and Education Inter-Academia" Iași, Romania, 25-28 septembrie 2017 | ||||||
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| DOI:https://doi.org/10.1007/978-3-319-67459-9_17 | ||||||
| Pag. 128-134 | ||||||
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The nanocomposites (NC) tri (o-methylbenzoic acid) 1,10-phenanthroline Europium(III) PEPC/Eu(o-MBA)3 Phen and tris (thenoyltrifluoroacetone) bis (triphenylphosphine oxide) Europium(III) PEPC/Eu(TTA)3 (Ph3 PO)2 have been studied. (PEPC stands for poly-N-epoxypropilcarbazol, TTA – 4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedione, Ph3 PO – triphenylphosphine oxide and o-MBA – 2-methylbenzoic acid, Phen – 1,10-Phenanthroline). Experimental results on technology, optical transmission and photoluminescence (PL) spectroscopy are presented. The absorption spectra of thin layers of NCs PEPC/Eu(o-MBA)3 Phen and PEPC/Eu(TTA)3 (Ph3 PO)2 revealed an intensive absorption bands with the absorption threshold at 3.40 and 3.34 eV respectively. The PL spectra of both NCs are similar and show an intense red luminescence with the main maximum at 611–615 nm, as well as other 4 less intensive maximuma, situated in the domain 578–750 nm, which are assigned to the transitions of excited electrons 5D0 → 7Fi (i = 0, 1, 2, 3, 4) on energy levels within the 4f-shell of the Eu 3+ ion. |
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| Cuvinte-cheie Eu3, nanocomposite, photoluminescence, Rare-earth |
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