Custom-Shaped Organic Photovoltaic Modules-Freedom of Design by Printing

Marja Välimäki (Corresponding Author), Elina Jansson, Pentti Korhonen, Anne Peltoniemi, Sanna Rousu

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)


Freedom of design that was introduced as organic photovoltaic (OPV) modules were fabricated by printing. As proof-of-concept, we show OPV leaf fabrication in A5 size using gravure and rotary screen printing processes for the main active layers of the OPV structure. These printing methods allow direct printing of any kind of arbitrary, two-dimensional shapes including patterning of the electric contacts thus post-patterning stages are not needed. Fabrication of custom-shaped OPV modules requires detailed information about the technical boundaries set by the manufacturing process and materials which in turn influence the layout design and R2R upscaling. In this paper, we show custom-shaped OPV modules, patterned directly in a shape of a tree leaf with an overall size of 110 cm2 and an active area of 50 cm2 providing a power conversion efficiency of 2.0% and maximum power of 98 mW.
Original languageEnglish
Article number117
Pages (from-to)117
JournalNanoscale Research Letters
Issue number1
Publication statusPublished - Dec 2017
MoE publication typeA1 Journal article-refereed


  • arbitrary shape OPV
  • custom-shaped OPV
  • freedom of design
  • printed OPV
  • ultra-thin and lightweight

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