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Photoluminescente properties of Eu(o-MBA)3Phen organic compound embedded in PEPC polymer matrix

O. BORDIAN1,* , V. VERLAN1, I. CULEAC1, M. IOVU1, V. ZUBAREVA2

Affiliation

  1. Institute of Applied Physics of Academy of Sciences of Moldova, Chisinau, Republic of Moldova
  2. Institute of Chemistry of Academy of Sciences of Moldova, Chisinau, Republic of Moldova

Abstract

We report preparation and characterization of new nanocomposite material based on oligomers poly-N-propyl carbazole (PEPC) and the organic compound Eu(o-MBA)3Phen, where o-MBA – ortho-methylbenzoic acid, Phen – phenanthroline. Nanocrystals Eu(o-MBA)3Phen with dimensions 20-50 nm have been incorporated into the polymer matrix PEPC with concentrations 5.78%, 2.73%, and 1.30%. Optical absorption thresholds are located in the range 3.34 - 3.40 eV in dependence on the concentration of Eu(o-MBA)3Phen compound. The photoluminescence spectra show a number of strong emmission bands, which are associated with the transitions 4D0→ 7 Fi (i = 0,1,2,3,4) in the 4f shell of the Eu3+ ion. Examination of the photoluminescence spectra of luminophore organic compound Eu(o-MBA)3Phen and nanocomposite PEPC/Eu(o-MBA)3Phen demonstrates the enhancement of the photoluminescence emission in PEPC/Eu(o-MBA)3Phen compared with Eu(o-MBA)3Phen.

Keywords

Photoluminescence, Eu(o-MBA)3Phen, PEPC, Absorption, Nanocomposites.

Submitted at: Nov. 17, 2015
Accepted at: April 6, 2017

Citation

O. BORDIAN, V. VERLAN, I. CULEAC, M. IOVU, V. ZUBAREVA, Photoluminescente properties of Eu(o-MBA)3Phen organic compound embedded in PEPC polymer matrix, Journal of Optoelectronics and Advanced Materials Vol. 19, Iss. 3-4, pp. 223-227 (2017)