This article is cited in 3 papers

Low dimensional systems

Specific features of energy transfer in nanocomposite films based on MEH-PPV polymer semiconductor and ZnO nanoparticles

O. P. Chikalova-Luzina, A. N. Aleshin, I. P. Shcherbakov

Ioffe Institute, St. Petersburg

Abstract: The specific features of the behavior of photoluminescence spectra of the MEH-PPV polymer matrix with variations in the concentration of energy donors (ZnO nanoparticles) have been considered theoretically. Based on the Förster theory, nonradiative energy transfer in this nanocomposite system has been analyzed theoretically, and the photoluminescence intensity of the matrix has been calculated for different concentrations of nanoparticles. The results of the calculations have been compared with the experimental data obtained for MEH-PPV: ZnO nanocomposite films. It has been shown that the calculated and experimental dependences of the photoluminescence intensity on the nanoparticle concentration are in good agreement. The possible causes of the quantitative differences associated with the specific features of nonradiative energy transfer in composite systems consisting of a polymer and inorganic nanoparticles, which can lead to the observed effects, have been discussed.

Received: 16.09.2014

 English version: Physics of the Solid State, 2015, 57:3, 618–623

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