Enhanced open-circuit voltage in subphthalocyanine/C60 organic photovoltaic cells

Kristin L. Mutolo, Elizabeth I. Mayo, Barry P. Rand, Stephen R. Forrest, Mark E. Thompson

Research output: Contribution to journalArticle

421 Scopus citations

Abstract

A double-heterostructure boron subphthalocyanine chloride (SubPc)/C60 thin-film photovoltaic cell exhibits a more than doubled Voc compared to a conventional copper phthalocyanine (CuPc)/C60 cell under 1 sun AM1.5G simulated illumination. The lower oxidation potential of SubPc results in an increase in the energy difference between the lowest unoccupied molecular orbital of the acceptor-like material and the highest occupied molecular orbital of the donor-like material (referred to as the interface gap, Ig) by 400 meV. We attribute the significant increase in Voc to this increase in Ig. Copyright

Original languageEnglish (US)
Pages (from-to)8108-8109
Number of pages2
JournalJournal of the American Chemical Society
Volume128
Issue number25
DOIs
StatePublished - Jun 28 2006

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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