Communication

Control of Rapid Formation of Interchain Excited States in Sugar-Threaded Supramolecular Wires†

  1. Annamaria Petrozza1,2,3,
  2. Sergio Brovelli1,2,
  3. Jasper J. Michels4,
  4. Harry L. Anderson4,
  5. Richard H. Friend3,
  6. Carlos Silva5,
  7. Franco Cacialli1,2,*

Article first published online: 14 JUL 2008

DOI: 10.1002/adma.200800007

Issue

Advanced Materials

Advanced Materials

Volume 20, Issue 17, pages 3218–3223, September 3, 2008

Additional Information

How to Cite

Petrozza, A., Brovelli, S., Michels, J. J., Anderson, H. L., Friend, R. H., Silva, C. and Cacialli, F. (2008), Control of Rapid Formation of Interchain Excited States in Sugar-Threaded Supramolecular Wires. Advanced Materials, 20: 3218–3223. doi: 10.1002/adma.200800007

Author Information

  1. 1

    Department of Physics and Astronomy, University College London Gower Street, London, WC1E 6BT (UK)

  2. 2

    London Centre for Nanotechnology, Gower Street, London, WC1E 6BT (UK)

  3. 3

    Department of Physics, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge, CB3 0HE (UK)

  4. 4

    Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA (UK)

  5. 5

    Département de physique & Regroupement québécois, sur les matériaux de pointe, Université de Montréal C.P. 6128, Succ. centre-ville, Montréal, QC H3C 3J7 (Canada)

*Department of Physics and Astronomy, University College London Gower Street, London, WC1E 6BT (UK).

  1. †

    We thank the EPSRC, the Royal Society and the European Commission (THREADMILL – MRTN-CT-2006-036040) for financial support. C.S. acknowledges support from the National Science and Engineering Research Council (NSERC) and the Canada Research Chairs Programme. This work was also partially supported, as part of the European Science Foundation EUROCORES Programme SONS, from funds by the EPSRC and the EC Sixth Framework Programme, under contract N. ERAS-CT-2003-980409. Supporting Information is available online from Wiley InterScience or from the authors.

Publication History

  1. Issue published online: 1 SEP 2008
  2. Article first published online: 14 JUL 2008
  3. Manuscript Revised: 6 FEB 2008
  4. Manuscript Received: 2 JAN 2008

Funded by

  • EPSRC
  • Royal Society
  • European Commission (THREADMILL). Grant Number: MRTN-CT-2006-036040
  • EPSRC
  • EC Sixth Framework Programme. Grant Number: ERAS-CT-2003-980409

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Keywords:

  • supramolecular materials;
  • polymers;
  • organic electronics;
  • semiconductors;
  • cyclodextrins

Graphical Abstract

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The time-resolved photoluminescence of cyclodextrin-threaded conjugated molecular wires and their unthreaded analogues is studied to probe suppression of intermolecular interactions by supramolecular encapsulation. The polyrotaxane dynamics are exponential and independent of concentration, different from those of unthreaded semiconductors, which display instead optical signatures of interchain species. This is fundamental insight into the photophysics of semiconducting polymers, and crucial for the development of organic electronics.

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