Increasing the Fill Factor of Inverted P3HT:PCBM Solar Cells Through Surface Modification of Al-Doped ZnO via Phosphonic Acid-Anchored C60 SAMs

Tobias Stubhan, Michael Salinas, Alexander Ebel, Frederik C Krebs, Andreas Hirsch, Marcus Halik, Christoph J. Brabec

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Abstract

The influence of aluminum-doped zinc oxide (AZO) electron extraction layers modified with self-assembled monolayers (SAMs) on inverted polymer solar cells is investigated. It is found that AZO modification with phosphonic acid-anchored Fullerene–SAMs leads to a reduction of the series resistance, while increasing the parallel resistance. This results in an increased efficiency from 2.9 to 3.3%.
Original languageEnglish
JournalAdvanced Energy Materials
Volume2
Issue number5
Pages (from-to)532-535
ISSN1614-6832
DOIs
Publication statusPublished - 2012

Keywords

  • CHEMISTRY
  • ENERGY
  • MATERIALS
  • PHYSICS
  • Al-doped ZnO
  • LAYERS
  • Fullerenes
  • Organic solar cells
  • Phosphonic acids
  • SAMs

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