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  Self-organization of supramolecular helical dendrimers into complex electronic materials

Percec, V., Glodde, M., Bera, T. K., Miura, Y., Shiyanovskaya, I., Singer, K. D., et al. (2002). Self-organization of supramolecular helical dendrimers into complex electronic materials. Nature, 419(6905), 384-387. doi:10.1038/nature01072.

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Percec, V., Author
Glodde, M., Author
Bera, T. K., Author
Miura, Y., Author
Shiyanovskaya, I., Author
Singer, K. D., Author
Balagurusamy, V. S. K., Author
Heiney, P. A., Author
Schnell, Ingo1, Author           
Rapp, A.1, Author           
Spiess, Hans Wolfgang1, Author           
Hudson, S. D., Author
Duan, H., Author
Affiliations:
1MPI for Polymer Research, Max Planck Society, ou_1309545              

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 Abstract: The discovery of electrically conducting organic crystals 1 and polymers(1-4) has widened the range of potential optoelectronic materials(5-9), provided these exhibit sufficiently high charge carrier mobilities(6-10) and are easy to make and process. Organic single crystals have high charge carrier mobilities but are usually impractical(11), whereas polymers have good processability but low mobilities(1,12). Liquid crystals exhibit mobilities approaching those of single crystals and are suitable for applications(13-18), but demanding fabrication and processing methods limit their use. Here we show that the self- assembly of fluorinated tapered dendrons can drive the formation of supramolecular liquid crystals with promising optoelectronic properties from a wide range of organic materials. We find that attaching conducting organic donor or acceptor groups to the apex of the dendrons leads to supramolecular nanometre-scale columns that contain in their cores pi-stacks of donors, acceptors or donor-acceptor complexes exhibiting high charge carrier mobilities. When we use functionalized dendrons and amorphous polymers carrying compatible side groups, these co-assemble so that the polymer is incorporated in the centre of the columns through donor- acceptor interactions and exhibits enhanced charge carrier mobilities. We anticipate that this simple and versatile strategy for producing conductive pi-stacks of aromatic groups, surrounded by helical dendrons, will lead to a new class of supramolecular materials suitable for electronic and optoelectronic applications.

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Language(s): eng - English
 Dates: 2002-09-26
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: No review
 Identifiers: eDoc: 28622
ISI: 000178195400042
Other: P-02-113
DOI: 10.1038/nature01072
 Degree: -

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Title: Nature
  Abbreviation : Nature
Source Genre: Journal
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Affiliations:
Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 419 (6905) Sequence Number: - Start / End Page: 384 - 387 Identifier: ISSN: 0028-0836
CoNE: https://pure.mpg.de/cone/journals/resource/954925427238