Roll-to-roll processed polymer tandem solar cells partially processed from water

Thue T. Larsen-Olsen, Thomas R. Andersen, Birgitta Andreasen, Arvid P. L. Bottiger, Eva Bundgaard, Kion Norrman, Jens W. Andreasen, Mikkel Jorgensen, Frederik C. Krebs

Research output: Contribution to journalArticlepeer-review

84 Citations (Scopus)

Abstract

Large area polymer tandem solar cells completely processed using roll-to-roll (R2R) coating and printing techniques are demonstrated. A stable tandem structure was achieved by the use of orthogonal ink solvents for the coating of all layers, including both active layers. Processing solvents included water, alcohols and chlorobenzene. Open-circuit voltages close to the expected sum of sub cell voltages were achieved, while the overall efficiency of the tandem cells was found to be limited by the low yielding back cell, which was processed from water based ink. Many of the challenges associated with upscaling the multilayer tandem cells were identified giving valuable information for future experiments and development.
Original languageEnglish
Pages (from-to)43-49
JournalSolar Energy Materials and Solar Cells
Volume97
DOIs
Publication statusPublished - Feb 2012
Externally publishedYes

Keywords

  • Roll-to-roll processing
  • Tandem solar cells
  • Polymer solar cells
  • Printing and croating
  • Aqueous processing

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