Optimizing the performance of metal grid conductors by modifying printing conditions

Liisa Hakola, Elina Jansson, Mark Allen, Sanna Rousu, Riikka Suhonen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    1 Citation (Scopus)


    Printed metal grid conductors can be used in thin, flexible and large area lighting sources based on e.g. light-emitting electrochemical cells (LEC). Similar to organic light emitting diodes (OLEDs), LECs are thin film electroluminescent devices, which can be processed from solution. However, LECs have a more simple architecture, and don't rely on air-sensitive chargeinjection layers or metals for electron injection. This offers simplicity for manufacturing process, cost-efficiency and easier large scale manufacturing. Printing methods such as inkjet and flexography are suitable for manufacturing metal grid conductors needed in LEC devices. The goal of this paper is to evaluate the potential of flexography and inkjet printing to manufacture metal grid conductors in industrial scale. Printing equipment that can be upscaled to industrial scale is used and printing conditions are modified to meet the device requirements. Performance and properties of inkjet and flexographic printed conductors are compared. Finally, feasibility of the required industrial setup is evaluated.
    Original languageEnglish
    Title of host publicationTechnical program and proceedings
    Subtitle of host publication28th International Conference on Digital Printing Technologies, NIP28 & Digital Fabrication 2012, 9-13 September 2012, Quebec City, Quebec, Canada
    PublisherThe Society for Imaging Science and Technology, IS&T
    ISBN (Print)978-0-89208-302-2
    Publication statusPublished - 2012
    MoE publication typeB3 Non-refereed article in conference proceedings
    EventDigital Fabrication 2012: Co-located with the 28th International Conference on Digital Printing Technologies, NIP28 - Quebec City, Canada
    Duration: 9 Sept 201213 Sept 2012


    ConferenceDigital Fabrication 2012
    CityQuebec City


    • Inkjet
    • flexography
    • grid
    • conductor
    • LEC
    • electrochemical cell


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