D. Yu. Paraschuk, S. G. Elizarov, A. N. Khodarev, A. N. Shchegolikhin, S. A. Arnautov, Е. М. Nechvolodova, “Weak intermolecular charge transfer in the ground state of a <nobr>$\pi$</nobr>-conjugated polymer chain”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2005, Volume 81, Issue 9,Pages <nobr>583

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Weak intermolecular charge transfer in the ground state of a $\pi$-conjugated polymer chain

D. Yu. Paraschuk^a, S. G. Elizarov^a, A. N. Khodarev^a, A. N. Shchegolikhin^b, S. A. Arnautov^c, Е. М. Nechvolodova^c

^a International Laser Center of Moscow State University
^b Emanuel Institute of Biochemical Physics RAS, 119991 Moscow, Russia
^c Semenov Institute of Chemical Physics RAS, 119991 Moscow, Russia

Abstract: We show that a $\pi$-conjugated polymer chain can demonstrate weak intermolecular charge transfer in the electronic ground state. Poly[2-methoxy-5-(2`-ethyl-hexyloxy)-1,4-phenylene vinylene]/2,4,7-trinitrofluorenone (MEH-PPV/TNF) donor-acceptor films have been studied by optical absorption, Raman, infrared spectroscopy, and differential scanning calorimetry. The factors influencing weak intermolecular charge transfer in $\pi $-conjugated chains are discussed.

PACS: 82.35.Cd, 78.30.Jw, 78.40.Me

Received: 02.03.2005
Revised: 25.03.2005

Language: English