Confined organization of fullerene units along high polymer chains

  1. Fang, L. 1
  2. Liu, P. 2
  3. Sveinbjornsson, B.R. 4
  4. Atahan-Evrenk, S. 3
  5. Vandewal, K. 1
  6. Osuna, S. 2
  7. Jiménez-Osés, G. 2
  8. Shrestha, S. 3
  9. Giri, G. 1
  10. Wei, P. 1
  11. Salleo, A. 1
  12. Aspuru-Guzik, A. 3
  13. Grubbs, R.H. 4
  14. Houk, K.N. 2
  15. Bao, Z. 1
  1. 1 Stanford University
    info

    Stanford University

    Stanford, Estados Unidos

    ROR https://ror.org/00f54p054

  2. 2 University of California Los Angeles
    info

    University of California Los Angeles

    Los Ángeles, Estados Unidos

    ROR https://ror.org/046rm7j60

  3. 3 Harvard University
    info

    Harvard University

    Cambridge, Estados Unidos

    ROR https://ror.org/03vek6s52

  4. 4 California Institute of Technology
    info

    California Institute of Technology

    Pasadena, Estados Unidos

    ROR https://ror.org/05dxps055

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Revista:
Journal of Materials Chemistry C . Materials for optical, magnetic and electronic devices

ISSN: 2050-7526

Año de publicación: 2013

Volumen: 1

Número: 36

Páginas: 5747-5755

Tipo: Artículo

DOI: 10.1039/C3TC31158A SCOPUS: 2-s2.0-84896061311 WoS: WOS:000323578000020 GOOGLE SCHOLAR

Otras publicaciones en: Journal of Materials Chemistry C . Materials for optical, magnetic and electronic devices

Resumen

Conductive fullerene (C60) units were designed to be arranged in one dimensional close contact by locally organizing them with covalent bonds in a spatially constrained manner. Combined molecular dynamics and quantum chemical calculations predicted that the intramolecular electronic interactions (i.e. charge transport) between the pendant C60 units could be controlled by the length of the spacers linking the C60 units and the polymer main chain. In this context, C60 side-chain polymers with high relative degrees of polymerization up to 1220 and fullerene compositions up to 53% were synthesized by ruthenium catalyzed ring-opening metathesis polymerization of the corresponding norbornene-functionalized monomers. UV/vis absorption and photothermal deflection spectra corroborated the enhanced inter-fullerene interactions along the polymer chains. The electron mobility measured for the thin film field-effect transistor devices from the polymers was more than an order of magnitude higher than that from the monomers, as a result of the stronger electronic coupling between the adjacent fullerene units within the long polymer chains. This molecular design strategy represents a general approach to the enhancement of charge transport properties of organic materials via covalent bond-based organization. This journal is © 2013 The Royal Society of Chemistry.