Nature Communications (Dec 2017)

Large bipolaron density at organic semiconductor/electrode interfaces

  • Rijul Dhanker,
  • Christopher L. Gray,
  • Sukrit Mukhopadhyay,
  • Sean Nunez,
  • Chiao-Yu Cheng,
  • Anatoliy N. Sokolov,
  • Noel C. Giebink

DOI
https://doi.org/10.1038/s41467-017-02459-3
Journal volume & issue
Vol. 8, no. 1
pp. 1 – 7

Abstract

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Bipolarons - two electrons or holes localized on the same molecule - are generally considered negligible in organic electronic devices. Dhanker et al. show that large bipolaron densities can exist near electrode interfaces and that they are linked to the phenomenon of unipolar organic magnetoresistance.