Barbiturate end-capped non-fullerene acceptors for organic solar cells: Tuning acceptor energetics to suppress geminate recombination losses

Ching Hong Tan, Jeffrey Gorman, Andrew Wadsworth, Sarah Holliday, Selvam Subramaniyan, Samson A. Jenekhe, Derya Baran, Iain McCulloch, James R. Durrant*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

We report the synthesis of two barbiturate end-capped non-fullerene acceptors and demonstrate their efficient function in high voltage output organic solar cells. The acceptor with the lower LUMO level is shown to exhibit suppressed geminate recombination losses, resulting in enhanced photocurrent generation and higher overall device efficiency.

Original languageEnglish (US)
Pages (from-to)2966-2969
Number of pages4
JournalChemical Communications
Volume54
Issue number24
DOIs
StatePublished - 2018

Bibliographical note

Funding Information:
The authors acknowledge funding from King Abdullah University of Science and Technology (KAUST) OSR-2015-CRG4-2572 and KAUST Center Competitive Fund, as well as EC FP7 Project SC2 (610115) EC H2020 (643791), and EPSRC Projects EP/G037515/1 and EP/M005143/1. CHT thanks MyBrainSc for PhD scholarship. SAJ and SS acknowledge funding under US NSF (CBET-1435912).

Publisher Copyright:
© The Royal Society of Chemistry 2018.

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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