High efficient plastic solar cells fabricated with a high-throughput gravure printing method

Pälvi Kopola (Corresponding Author), T. Aernouts, S. Guillerez, H. Jin, Markus Tuomikoski, Arto Maaninen, Jukka Hast

Research output: Contribution to journalArticleScientificpeer-review

102 Citations (Scopus)

Abstract

We report on polymer-based solar cells prepared by the high-throughput roll-to-roll gravure printing method. The engravings of the printing plate, along with process parameters like printing speed and ink properties, are studied to optimise the printability of the photoactive as well as the hole transport layer. For the hole transport layer, the focus is on testing different formulations to produce thorough wetting of the indium-tin-oxide (ITO) substrate. The challenge for the photoactive layer is to form a uniform layer with optimal nanomorphology in the poly-3-hexylthiophene (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) blend. This results in a power conversion efficiency of 2.8% under simulated AM1.5G solar illumination for a solar cell device with gravure-printed hole transport and a photoactive layer.
Original languageEnglish
Pages (from-to)1673-1680
Number of pages8
JournalSolar Energy Materials and Solar Cells
Volume94
Issue number10
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed

Keywords

  • Gravure printing
  • Organic photovoltaics
  • Polymer solar cell
  • Solution processing

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