About Oligothiophene Self-Assembly: From Aggregation in Solution to Solid-State Nanostructures

By P. Leclere, M. Surin, P. Viville, R. Lazzaroni, A. Kilbinger, O. Henze, W. Feast, M. Cavallini, F. Biscarini, A. Schenning and 1 more. 2004

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Well-defined π-conjugated oligomers play an important role in the field of organic electronics, because their precise chemical structure and conjugation length give rise to well-defined functional properties and facilitate control over their supramolecular organization. In this review, we present different complementary approaches for the control of molecular assembly into well-defined structures on the nanoscale, applied to oligothiophenes as a typical conjugated system. We consider self-assembly in solution, sublimation of individual molecules in the vapor phase, and aggregation in thin deposits from compounds molecularly dispersed in a solution. We demonstrate that the development of substituted, soluble π-conjugated materials allows not only a control of their organization in the solid state but also the possibility of determining the degree of order in solution. During these self-assembly processes, the interplay between the conjugated molecules, the solvent, and the substrate surface is of primary i...

Subfields: Electrical and Electronic Engineering, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/1cd6acbfe7cfffcd75f78acfe71c4d51fe76bb9a