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Journal of Chemical Physics / Volume 125 / Issue 2 / ARTICLES / Surfaces, Interfaces, and Materials

J. Chem. Phys. 125, 024702 (2006); doi:10.1063/1.2212943 (8 pages)

Effect of static and dynamic disorder on exciton mobility in oligothiophenes

L. Raimondo1, M. Laicini1, P. Spearman2, S. Tavazzi1, and A. Borghesi1

1Dipartimento di Scienza dei Materiali and CNISM, Università degli Studi di Milano Bicocca, Via R. Cozzi 53, I-20125 Milano, Italy
2Dipartimento di Scienza dei Materiali, Università degli Studi di Milano Bicocca, Via R. Cozzi 53, I-20125 Milano, Italy; and School of Chemical and Pharmaceutical Sciences, Kingston University, Kingston Upon Thames, Surrey KTI 2EE, United Kingdom

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(Received 31 March 2006; accepted 18 May 2006; published online 12 July 2006)

The polarized optical absorption spectra of different quaterthiophene single crystals in the energy region of the exciton bands originating from the first molecular transition are reported as measured in the temperatures ranging from 7 to 140 K. The intrinsic higher mobility of the b-polarized 0-0 au exciton both with respect to its replicas and to the a-polarized structures is demonstrated in high quality crystals at the lowest temperatures. The influence of structural disorder on mobility is discussed considering, for the different samples, the measured lineshape and linewidth of the absorption peaks, and the relative lineshift and intensity ratio between the 0-0 au line and its first replica at the lowest temperature. The influence of dynamic disorder is discussed considering the lineshape and linewidth of the measured peaks as a function of temperature for both polarizations in the framework of the exciton-phonon coupling theory.

© 2006 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENT
  3. RESULTS AND DISCUSSION
  4. CONCLUSIONS

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KEYWORDS and PACS

Keywords

organic compounds, light absorption, phonon-exciton interactions, crystal structure, spectral line intensity, spectral line shift, spectral line breadth

PACS

  • 71.35.-y

    Excitons and related phenomena

  • 61.66.Hq

    Organic compounds

  • 78.20.Ci

    Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)

ARTICLE DATA

Permalink
http://link.aip.org/link/doi/10.1063/1.2212943

PUBLICATION DATA

ISSN:

0021-9606 (print)  
1089-7690 (online)

Publisher:

$abstract.society.value is a Member of CrossRef American Institute of Physics

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    H. Yanagi and T. Morikawa, Appl. Phys. Lett. 75, 187 (1999)APPLAB000075000002000187000001.

    M. Nagawa, R. Hibino, S. Hotta, H. Yanagi, M. Ichikawa, T. Koyama, and Y. Taniguchi, Appl. Phys. Lett. 80, 544 (2002)APPLAB000080000004000544000001.

    F. Meinardi, M. Cerminara, A. Sassella, R. Bonifacio, and R. Tubino, Phys. Rev. Lett. 91, 247401 (2003).

    F. C. Spano, J. Chem. Phys. 120, 7643 (2004)JCPSA6000120000016007643000001.

    M. Muccini, M. Schneider, C. Taliani, M. Sokolowski, E. Umbach, D. Beljonne, J. Cornil, and J. L. Brédas, Phys. Rev. B 62, 6296 (2000).

    F. Kouki, P. Spearman, P. Valat, G. Horowitz, and F. Garnier, J. Chem. Phys. 113, 385 (2000)JCPSA6000113000001000385000001.

    S. Tavazzi, A. Borghesi, M. Laicini, and P. Spearman, J. Chem. Phys. 121, 8542 (2004)JCPSA6000121000017008542000001.

    M. Laicini, P. Spearman, S. Tavazzi, and A. Borghesi, Phys. Rev. B 71, 045212 (2005).

    Z. Zhao and F. C. Spano, J. Chem. Phys. 122, 114701 (2005)JCPSA6000122000011114701000001.

    H. Sumi, J. Chem. Phys. 67, 2943 (1977)JCPSA6000067000007002943000001.

    H. Fidder, J. Terpstra, and D. A. Wiersma, J. Chem. Phys. 94, 6895 (1991)JCPSA6000094000010006895000001.

    H. Fidder, J. Knoester, and D. A. Wiersma, J. Chem. Phys. 95, 7880 (1991)JCPSA6000095000011007880000001.

    J. Klafter and J. Jortner, J. Chem. Phys. 68, 1513 (1978)JCPSA6000068000004001513000001.

    F. C. Spano, J. Chem. Phys. 116, 5877 (2002)JCPSA6000116000013005877000001.

    D. J. Heijs, V. A. Malyshev, and J. Knoester, J. Chem. Phys. 123, 144507 (2005)JCPSA6000123000014144507000001.

    D. J. Heijs, V. A. Malyshev, and J. Knoester, Phys. Rev. Lett. 95, 177402 (2005).

    W. Gebauer, A. Langner, M. Schneider, M. Sokolowski, and E. Umbach, Phys. Rev. B 69, 125420 (2004).

    F. C. Spano, Phys. Rev. B 71, 235208 (2005).

    M. Andrzejak, P. Petelenz, M. Slawik, and R. W. Munn, J. Chem. Phys. 117, 1328 (2002)JCPSA6000117000003001328000001.

    M. Muccini, E. Lunedei, C. Taliani, D. Beljonne, J. Cornil, and J. L. Bredas, J. Chem. Phys. 109, 10513 (1998)JCPSA6000109000023010513000001.

    P. Petelenz and M. Andrzejak, J. Chem. Phys. 113, 11306 (2000)JCPSA6000113000024011306000001.


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