Roll-to-Roll Fabrication of Bulk Heterojunction plastic solar cells using the reverse gravure coating technique

Daniel Tobjörk, Harri Aarnio, Tapio Mäkelä, Ronald Österbacka

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    7 Citations (Scopus)

    Abstract

    The roll-to-roll reverse gravure (RG) coating technique was used to produce thin homogeneous films (~100 nm) for organic bulk heterojunction solar cells. The conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and the active layer regioregular poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM) were successfully subsequently RG coated on an ITO covered plastic substrate in ambient air. Working solar cells were achieved after annealing and thermal evaporation of the top contact. The AM1.5 power conversion efficiency (PCE) of the RG coated organic solar cells was determined to 0.74% (at 100 mW/cm2). This was very similar to the results of a reference device that was spin coated on a glass substrate in a nitrogen glove box.
    Original languageEnglish
    Title of host publicationSymposium AA – Conjugated Organic Materials–Synthesis, Structure, Device and Applications
    PublisherMaterials Research Society
    Pages1091-AA05-45
    ISBN (Print)978-1-6056-0829-7
    DOIs
    Publication statusPublished - 2008
    MoE publication typeA4 Article in a conference publication

    Publication series

    SeriesMRS Online Proceedings
    Volume1091
    ISSN1946-4274

    Keywords

    • flexible electronics
    • organic bulk heterojunction solar cells

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