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![]() VERLAN, Victor, YOVU, M., CULEAC, Ion, BORDIAN, Olga, ZUBAREVA, Vera, NISTOR, Yu.. Effective transfer of UV energy to red luminescence in the nanocomposites polymer/Eu coordination compounds. In: IFMBE Proceedings: 3rd International Conference on Nanotechnologies and Biomedical Engineering, ICNBME 2015, Ed. 3, 23-26 septembrie 2015, Chişinău. Springer, 2016, Editia 3, Vol.55, pp. 17-20. ISBN 978-981287735-2. ISSN 16800737. DOI: https://doi.org/10.1007/978-981-287-736-9_4 |
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IFMBE Proceedings Editia 3, Vol.55, 2016 |
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Conferința "International Conference on Nanotechnologies and Biomedical Engineering" 3, Chişinău, Moldova, 23-26 septembrie 2015 | |||||||
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DOI:https://doi.org/10.1007/978-981-287-736-9_4 | |||||||
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Nanocomposites (NCs) thin films based on oligomer poly-N-epoxypropylcarbazole (PEPC) and organic coordinated compounds (OCC) have been obtained by chemical methods. Absorption threshold for samples with different concentrations was determined as 3.34 - 3.4 eV. Photoluminescence spectra reveal a number of emission bands centered at 580, 590, 612-615, 651, and 700 nm, which can be associated to internal 4f - 4f transitions of Eu3+ ion 5D0 → 7Fi (i = 0,1,2,3 and 4). By comparing the photoluminescence spectra of the organic compound and of the PEPC/Eu(o- MBA)3Phen nanocomposite one can observe the amplification of the photoluminescence intensity in NC. |
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Cuvinte-cheie energy transfer, nanocomposites, polymer, Rare earth |
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