Excitons in conjugated oligomer aggregates, films, and crystals

Article Abstract:

The technologically important unsubstituted oligo-phenylene vinylenes (OPVn) and oligo-thiophenes (OTn), which display side-by-side herringbone crystal, are discussed. The key photophysical properties displayed by OPVn and OTn solid phases, including the large Davydov splitting, the variety of peaks due to vibronic coupling in both absorption and emission, and the unusual behavior of the emission origin, are accounted for in a model including excitonic coupling between molecules, linear exciton-phonon coupling, and disorder.

Science & research, Research, Electric properties, Absorption, Oligomers, Thiophene

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Charge transport at conjugated polymer-inorganic semiconductor and conjugated polymer-metal interfaces

Article Abstract:

Conjugated polymer interfaces and charge transport with inorganic semiconductor and metals are reviewed. Charge distribution and interfacial potential profiles expected at various types of electroactive interfaces is emphasized.

Organic semiconductors, Charge transfer, Conducting polymers, Properties

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Structure and dynamics of conjugated polymers in liquid crystalline solvents

Article Abstract:

The structural and dynamic properties of complex polymers in crystalline solvents such as nematic and smectic solvents are studied.

Polymers, Crystallization, Structure, Chemical properties

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