Efficient small molecule bulk heterojunction solar cells with high fill factors via pyrene-directed molecular self-assembly

Olivia P. Lee, Alan T. Yiu, Pierre Beaujuge, Claire Woo, Thomas W. Holcombe, Jill E. Millstone, Jessica D. Douglas, Mark S. Chen, Jean Frechet

Research output: Contribution to journalArticlepeer-review

326 Scopus citations

Abstract

Efficient organic photovoltaic (OPV) materials are constructed by attaching completely planar, symmetric end-groups to donor-acceptor electroactive small molecules. Appending C2-pyrene as the small molecule end-group to a diketopyrrolopyrrole core leads to materials with a tight, aligned crystal packing and favorable morphology dictated by π-π interactions, resulting in high power conversion efficiencies and high fill factors. The use of end-groups to direct molecular self-assembly is an effective strategy for designing high-performance small molecule OPV devices. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original languageEnglish (US)
Pages (from-to)5359-5363
Number of pages5
JournalAdvanced Materials
Volume23
Issue number45
DOIs
StatePublished - Oct 21 2011

ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Science(all)
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Efficient small molecule bulk heterojunction solar cells with high fill factors via pyrene-directed molecular self-assembly'. Together they form a unique fingerprint.

Cite this