Luminescence of nanocomposites with different coordination of Eu+3 ions and polymers

VERLAN, V. I.; IOVU, M. S.; ANDRIESH, A. M.; CULEAC, I.; TURTA, C. I.; ZUBAREVA, V. E.

Home
→
Facultatea Electronică şi Telecomunicaţii
→
Conferinţa Internaţională "Telecomunicaţii, Electronică şi Informatică" - ICTEI
→
2012
→
View Item

dc.contributor.author	VERLAN, V. I.
dc.contributor.author	IOVU, M. S.
dc.contributor.author	ANDRIESH, A. M.
dc.contributor.author	CULEAC, I.
dc.contributor.author	TURTA, C. I.
dc.contributor.author	ZUBAREVA, V. E.
dc.date.accessioned	2019-12-04T12:00:16Z
dc.date.available	2019-12-04T12:00:16Z
dc.date.issued	2012
dc.identifier.citation	VERLAN, V. I., IOVU, M. S., ANDRIESH, A. M. et al. Luminescence of nanocomposites with different coordination of Eu+3 ions and polymers. In: Telecommunications, Electronics and Informatics- ICTEI 2012: proc. of the 5th intern. conf., Technical University of Moldova, May 11-13, 2012. Chișinău, 2012, Vol. 1, pp. 106-111. ISBN 978-9975-45-082-9.	en_US
dc.identifier.isbn	978-9975-45-082-9
dc.identifier.uri	http://repository.utm.md/handle/5014/7246
dc.description.abstract	Thin films (1-3 μm thickness) of nanocomposites (NCs) based on organic compounds with Eu3+ ions (Eu(TTA)3H2O, Eu(TTA)3Phen, Eu(DBM)3Phen and Eu(TTA)2(Ph3PO)2NO3) and polymer polyvinylpyrrolidone (PVP) or copolymer styrenebutylmethacrilate in ratio of 1:1 (SBMA) were obtained by chemical methods and with different molar ratios into organic polymer matrix. NCs have been characterized by measurements of optical transmission and photoluminescence (PL). The PL of nanocomposites in all type of compounds with Eu3+ ions were detected the same spectra as specific for internal transitions 4f → 4f of the Eu3+ ion 5D0 → 7Fi (i = 0,1,2,3 and 4) centered at 537, 578, 615, 632,649, 690 and 705 nm, respectively at T=300 K. The dominant PL is in the position to 612 - 615 nm and the halfwidth is less than 10 nm and it is attributed to the transition 5D0 → 7F2. In nanocomposites, the effect of energy transfer from polymer matrix to coordinated molecule with subsequent transfer of them to Eu+3 ions have been identified. It was proposed some applications of given nanocomposites in optoelectronics and medicine.	en_US
dc.language.iso	en	en_US
dc.publisher	Technical University of Moldova	en_US
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 United States	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.subject	nanocomposites	en_US
dc.subject	rare earth	en_US
dc.subject	photoluminescence	en_US
dc.subject	polymers	en_US
dc.subject	energy transfer	en_US
dc.subject	laser emission	en_US
dc.title	Luminescence of nanocomposites with different coordination of Eu+3 ions and polymers	en_US
dc.type	Article	en_US