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Dynamic preparation of TiO2 films for fabrication of dye-sensitized solar cells

  • Henriette Santa-Nokki
  • , Jani Kallioinen*
  • , Terho Kololuoma
  • , Vladimir Tuboltsev
  • , Jouko Korppi-Tommola
  • *Corresponding author for this work

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    Preparation of nanocrystalline porous titanium dioxide (TiO2) films with roll-to-roll compatible methods was studied. Gravure printing was used for spreading TiO2 paste and paper calendering for pressing TiO2 nanoparticle films. Influence of different preparation methods on performance of fabricated dye-sensitized solar cells (DSSCs) was investigated. The attained light into electricity conversion efficiency was compared with DSSCs fabricated on conductive plastic substrates by doctor-blading spreading with subsequent static pressing. The latter method achieved a light conversion efficiency as high as 5.1%. The efficiency of the cells with a gravure printed TiO2 film was found to be rather low. The highest conversion efficiency was 1.7%; this is concluded to be due to insufficient thickness of the gravure printed TiO2 films. Calendering of the doctor-bladed films on the other hand attained a light conversion efficiency of 4.7%.
    Original languageEnglish
    Pages (from-to)187-191
    Number of pages5
    JournalJournal of Photochemistry and Photobiology A: Chemistry
    Volume182
    Issue number2
    DOIs
    Publication statusPublished - 2006
    MoE publication typeA1 Journal article-refereed

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 7 - Affordable and Clean Energy
      SDG 7 Affordable and Clean Energy

    Keywords

    • dye-sensitized solar cell
    • solar cells
    • dynamic press
    • titanium dioxide
    • calender
    • gravure
    • roll-to-roll

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