Enhanced efficiency of single and tandem organic solar cells incorporating a diketopyrrolopyrrole-based low-bandgap polymer by utilizing combined ZnO/polyelectrolyte electron-transport layers

Adv Mater. 2013 Sep 14;25(34):4783-8. doi: 10.1002/adma.201301288. Epub 2013 Jul 12.

Abstract

Power conversion efficiency up to 8.6% is achieved for a solution-processed tandem solar cell based on a diketopyrrolopyrrole-containing polymer as the low-bandgap material after using a thin polyelectrolyte layer to modify the electron-transport ZnO layers, indicating that interfacial engineering is a useful approach to further enhancing the efficiency of tandem organic solar cells.

Keywords: conjugated polymer; polyelectrolyte; solvent additives; tandem organic solar cells; zinc oxide.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Electrolytes / chemistry*
  • Electron Transport
  • Electrons
  • Metal Nanoparticles / chemistry
  • Polymers / chemistry
  • Pyrroles / chemistry*
  • Solar Energy*
  • Zinc Oxide / chemistry*

Substances

  • Electrolytes
  • Polymers
  • Pyrroles
  • Zinc Oxide