High-efficiency organic photovoltaic cells based on the solution-processable hole transporting interlayer copper thiocyanate (CuSCN) as a replacement for PEDOT:PSS

Nir Yaacobi-Gross, Neil D. Treat, Pichaya Pattanasattayavong, Hendrik Faber, Ajay K. Perumal, Natalie Stingelin, Donal D.C. Bradley, Paul N. Stavrinou, Martin Heeney, Thomas D. Anthopoulos

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Abstract

The use of copper thiocyanate (CuSCN) as a universal solution-processable and highly transparent hole-transporting layer in organic bulk-heterojunction photovoltaic cells is demonstrated. When CuSCN is employed as a replacement for the commonly used poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS), organic solar cells with maximum power conversion efficiency of 8%, are realized; this value is 1.27 times higher than that for optimized control cells based on PEDOT:PSS.
Original languageEnglish (US)
Article number1401529
JournalAdvanced Energy Materials
Volume5
Issue number3
DOIs
StatePublished - Jan 1 2015
Externally publishedYes

Keywords

  • copper thiocyanate
  • hole transporting layers
  • organic photovoltaics
  • solar cells
  • transparent interfacial layers

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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