Oligothiophene cruciform with a germanium spiro center: a promising material for organic photovoltaics

Iain A. Wright, Alexander L. Kanibolotsky, Joseph Cameron, Tell Tuttle, Peter J. Skabara, Simon J. Coles, Calvyn T. Howells, Stuart A. J. Thomson, Salvatore Gambino, Ifor D. W. Samuel, Peter Skabara

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

A fascinating packing motif is observed in a novel cruciform oligothiophene containing a Ge (violet; see picture) spiro center. Long-range interchain interactions between molecules and strong electronic coherence between orthogonal chains within the molecules are present. Such ordering is advantageous for bulk charge transport, as demonstrated by high short-circuit currents in bulk heterojunction organic solar cells.
Original languageEnglish
Pages (from-to)4562-4567
Number of pages6
JournalAgewandte Chemie-International Edition
Volume51
Issue number19
DOIs
Publication statusPublished - May 2012

Keywords

  • organic photovoltaics
  • spiro center
  • oligothiophene cruciform
  • oligomerization
  • spiro compounds

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