Journal article

Intrinsic Mobility Limit for Anisotropic Electron Transport in Alq₃

  • Drew, Alan J. Département de Physique, Université de Fribourg, Switzerland
  • Pratt, F. L. ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, United Kingdom
  • Hoppler, Justin Département de Physique, Université de Fribourg, Switzerland
  • Schulz, Leander Département de Physique, Université de Fribourg, Switzerland
  • Malik, Vivek Kumar Département de Physique, Université de Fribourg, Switzerland
  • Morley, N. A. Dept. of Engineering Materials, University of Sheffield, United Kingdom
  • Desai, P. Dept. of Physics, Queen Mary, University of London, London, United Kingdom
  • Shakya, P. Dept. of Physics, Queen Mary, University of London, London, United Kingdom
  • Kreouzis, T. Dept. of Physics, Queen Mary, University of London, London, United Kingdom
  • Gillin, W. P. Dept. of Physics, Queen Mary, University of London, London, United Kingdom
  • Kim, Kyung Wan Département de Physique, Université de Fribourg, Switzerland
  • Dubroka, Adam Département de Physique, Université de Fribourg, Switzerland
  • Scheuermann, R. Paul Scherrer Institut, PSI-Villigen, Switzerland
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    17.03.2008
Published in:
  • Physical Review Letters. - 2008, vol. 100, p. 116601
English Muon spin relaxation has been used to probe the charge carrier motion in the molecular conductor Alq₃ (tris[8-hydroxy-quinoline] aluminum). At 290 K, the magnetic field dependence of the muon spin relaxation corresponds to that expected for highly anisotropic intermolecular electron hopping. Intermolecular mobility in the fast hopping direction has been found to be 0.23±0.03 cm² V⁻¹ s⁻¹ in the absence of an electric- field gradient, increasing to 0.32±0.06 cm² V⁻¹ s⁻¹ in an electric field gradient of 1 MV m⁻¹. These intrinsic mobility values provide an estimate of the upper limit for mobility achievable in bulk material.
Faculty
Faculté des sciences
Department
Physique
Language
  • English
Classification
Physics
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License undefined
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Persistent URL
https://folia.unifr.ch/unifr/documents/300650
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