Effective transfer of UV energy to red luminescence in the nanocomposites polymer/Eu coordination compounds

Verlan Victor; Yovu M.; Culeac Ion; Bordian Olga; Zubareva Vera; Nistor Yu.

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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

Conferința "International Conference on Nanotechnologies and Biomedical Engineering"
3, Chişinău, Moldova, 23-26 septembrie 2015

Effective transfer of UV energy to red luminescence in the nanocomposites polymer/Eu coordination compounds

DOI:https://doi.org/10.1007/978-981-287-736-9_4

Pag. 17-20

Verlan Victor¹, Yovu M.¹, Culeac Ion¹, Bordian Olga¹², Zubareva Vera², Nistor Yu.¹

¹ Institute of Applied Physics, Academy of Sciences of Moldova,
² Institute of Chemistry of the Academy of Sciences of Moldova

Proiecte:

GA 810652

Promoting smart specialization at the Technical University of Moldova by developing the field of Novel Nanomaterials for BioMedical Applications through excellence in research and twinning

Disponibil în IBN: 26 ianuarie 2023

Rezumat

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.

Cuvinte-cheie
energy transfer, nanocomposites, polymer, Rare earth