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Issue 10, 2017
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Convective self-assembly of π-conjugated oligomers and polymers

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Abstract

Here, we apply convective self-assembly, a technique that was developed to deposit nano-to-micrometer-sized colloids onto solid substrates, to conjugated organic matter. We demonstrate its versatility and effectiveness by fabricating uniform, structured films using both oligomeric and macromolecular species and show through specific examples that the optical properties of the created thin-film structures can be readily manipulated by adjusting parameters such as concentration, substrate temperature and deposition. We tentatively attribute this change in optical properties to a change in the molecular conformation of the deposited molecules. Convective self-assembly should be generally applicable to organic semiconductors and, in principle, can be applied to large-area substrates and roll-to-roll procedures, hence, providing a powerful, additional tool for the processing of conjugated organic materials.

Graphical abstract: Convective self-assembly of π-conjugated oligomers and polymers

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Supplementary files

Article information


Submitted
05 Jan 2017
Accepted
18 Feb 2017
First published
20 Feb 2017

J. Mater. Chem. C, 2017,5, 2513-2518
Article type
Communication

Convective self-assembly of π-conjugated oligomers and polymers

I. Botiz, M. Codescu, C. Farcau, C. Leordean, S. Astilean, C. Silva and N. Stingelin, J. Mater. Chem. C, 2017, 5, 2513
DOI: 10.1039/C7TC00063D

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