Poly(2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene)(MEH-PPV) /Nitrogen Containing Derivatives of Fullerene Composites: Optical Characterization and Application in Flexible Polymer Solar Cells.

Autor: Spitsina, N., Romanova, I., Lobach, A., Yakuschenko, I., Kaplunov, M., Tolstov, I., Triebel, M., Frankevich, E.
Zdroj: Journal of Low Temperature Physics; Feb2006, Vol. 142 Issue 3/4, p203-208, 6p
Abstrakt: New soluble organofullerenes were synthesized by the reaction of organic amines and azides with the [60]fullerene. The comparative investigations of the IR- and optical absorption spectra of blends MEH-PPV/fullerene derivative in solutions and in films showed no ground-state interaction between the components. Photoluminescence (PL) experiments, and photocurrent-voltage measurements were performed on model photovoltaic (PV) cells. We found that PL of MEH-PPV is completely quenched by a small admixture of fullerene derivative which assumes a high efficiency of charge separation in the composite material. The photocurrent in the PV device containing fullerene derivative is two orders of magnitude higher than that in pure MEH-PPV. An attempt to observe the magnetic field spin effect (MFSE) on the photocurrent in MEH-PPV/fullerene composites was made. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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