Journal
ADVANCED MATERIALS
Volume 22, Issue 8, Pages E81-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200903672
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Funding
- ESF-SONS2-SUPRAMATES
- EU [PITN-CA-2009-238177]
- RTN-THREADMILL [MRTN-CT-2006-036040]
- EC [212311]
- NanoSci-E+ project SENSORS
- Regione Emilia-Romagna PRIITT Prominer Net-Lab
- International Center for Frontier Research in Chemistry (FRC)
- Belgian Federal Science Policy Office [PAI 6/27]
- FNRS-FRFC
- Royal Netherlands Academy of Science
- Leverhulme Trust (UK)
- EPSRC [EP/E037526/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E037526/1] Funding Source: researchfish
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The optimization of the electronic properties of molecular materials based on optically or electrically active organic building blocks requires a fine-tuning of their self-assembly properties at surfaces. Such a fine-tuning can be obtained on a scale up to 10 nm by mastering principles of supramolecular chemistry, i.e., by using suitably designed molecules interacting via pre-programmed noncovalent forces. The control and fine-tuning on a greater length scale is more difficult and challenging. This Research News highlights recent results we obtained on a new class of macromolecules that possess a very rigid backbone and side chains that point away from this backbone. Each side chain contains an organic semiconducting moiety, whose position and electronic interaction with neighboring moieties are dictated by the central macromolecular scaffold. A combined experimental and theoretical approach has made it possible to unravel the physical and chemical properties of this system across multiple length scales. The (opto)electronic properties of the new functional architectures have been explored by constructing prototypes of field-effect transistors and solar cells, thereby providing direct insight into the relationship between architecture and function.
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