R2R Electrical Sintering of Nanoparticle Structures

Mark Allen, Ari Alastalo, Mikko Aronniemi, Tomi Mattila, Kimmo Sääskilahti, Mika Suhonen, Heikki Seppä

    Research output: Contribution to conferenceConference articleScientificpeer-review


    A method for sintering nanoparticles in the roll-to-roll environment is presented. The method of electrical sintering is first demonstrated by applying a constant voltage between two electrodes in contact with a printed silver nanoparticle track. The electrical sintering method is extended to enable sintering between a roll at an alternating electric potential and a ground plate. An analytical study of the electrical properties of metal nanoparticle inks gives an upper limit for the sintering frequency, approximately 1 GHz, above which power is no longer effectively dissipated in the material. These results are shown to agree well with experimental measurements. A first demonstration of patterning by roll-to-roll electrical sintering using a simple laboratory setup is presented. Using a desktop gravure test printer as a roll-to-roll sintering stage is discussed.
    Original languageEnglish
    Number of pages6
    Publication statusPublished - 2008
    Event1st International Conference on R2R Printed Electronics - Seoul, Korea, Republic of
    Duration: 30 Apr 20082 May 2008


    Conference1st International Conference on R2R Printed Electronics
    Country/TerritoryKorea, Republic of


    • printed electronics
    • sintering
    • nanoparticle ink
    • roll-to-roll printing


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