Nanoparticle-based, spray-coated silver top contacts for efficient polymer solar cells

Claudio Girotto, Barry P. Rand, Soeren Steudel, Jan Genoe, Paul Heremans

Research output: Contribution to journalArticlepeer-review

104 Scopus citations


We demonstrate a solution-processed top electrode for large area organic electronic devices. A Ag nanoparticle solution is spray-coated directly on top of an inverted bulk-heterojunction organic solar cell through a shadow mask. After sintering the Ag nanoparticle film at 150 °C, a temperature which is compatible with processes on flexible substrates, cells show performances comparable to those of reference devices with evaporated top-contacts.

Original languageEnglish (US)
Pages (from-to)735-740
Number of pages6
JournalOrganic Electronics
Issue number4
StatePublished - Jul 2009

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering


  • 65.80.+n
  • 73.61.At
  • 81.07.-b
  • 81.15.Rs
  • 84.60.Jt
  • Ag nanoparticles
  • Metal top contact
  • Organic solar cells
  • Solution processing
  • Spray coating


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