Fullerene van der waals Oligomers as electron traps

Tatyana E. Shubina, Dmitry I. Sharapa, Christina Schubert, Dirk Zahn, Marcus Halik, Paul A. Keller, Stephen G. Pyne, Sreenu Jennepalli, Dirk M. Guldi, Tim Clark

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Abstract

Density functional theory calculations indicate that van der Waals fullerene dimers and larger oligomers can form interstitial electron traps in which the electrons are even more strongly bound than in isolated fullerene radical anions. The fullerenes behave like “super atoms”, and the interstitial electron traps represent one-electron intermolecular σ-bonds. Spectroelectrochemical measurements on a bis-fullerene-substituted peptide provide experimental support. The proposed deep electron traps are relevant for all organic electronics applications in which non-covalently linked fullerenes in van der Waals contact with one another serve as n-type semiconductors.
Original languageEnglish
Pages (from-to)10890–10893
JournalJournal of the American Chemical Society
Volume136
Issue number31
Early online date22 Jul 2014
DOIs
Publication statusPublished - 2014

Keywords

  • fullerenes
  • molecular electronics

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