Direct Write Contacts for Solar Cells

    Research output: Contribution to conferencePaper


    Ag, Cu, and Ni metallizations were inkjet-printed with near-vacuum deposition quality. The approach developed can be easily extended to other conductors such as Pt, Pd, and Au. Thick, highly conducting lines of Ag and Cu demonstrating good adhesion to glass, Si, and PCB have been printed at 100?-200oC in air and N2, respectively. Ag grids were inkjet-printed on Si solar cells and fired throughthe silicon nitride antireflective layer at 850oC resulting in 8%-efficient cells. Next-generation multicomponent inks (including etching agents) have also been developed with improved fire-through contacts leading to higher cell efficiencies. PEDOT-PSS polymer-based conductors were inkjet-printed with conductivity as good or better than that of spin-coated films.
    Original languageAmerican English
    Number of pages7
    StatePublished - 2005
    Event31st IEEE Photovoltaics Specialists Conference and Exhibition - Lake Buena Vista, Florida
    Duration: 3 Jan 20057 Jan 2005


    Conference31st IEEE Photovoltaics Specialists Conference and Exhibition
    CityLake Buena Vista, Florida

    NREL Publication Number

    • NREL/CP-520-37524


    • direct wire contacts
    • inkjet printing
    • multicomponent inks
    • polymer-based conductors
    • PV
    • solar cells
    • spin-coated films


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