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VOLUME 81 (2005) | ISSUE 9 | PAGE 583
Weak intermolecular charge transfer in the ground state of a π-conjugated polymer chain
PACS: 82.35.Cd, 78.30.Jw, 78.40.Me
Abstract
We show that a π -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 π -conjugated chains are discussed.