Direct-Write Contacts for Solar Cells

    Research output: Contribution to conferencePaper


    We report on our project to develop inkjet printable contacts for solar cells. Ag, Cu, and Ni metallizations were inkjet printed with near vacuum deposition quality. Thick, highly conducting lines of Ag and Cu demonstrating good adhesion to glass, Si, and PCB have been printed at 100-200 oC in air and N2, respectively. Ag grids were inkjet-printed on Si solar cells and fired through siliconnitride AR layer at 850 oC resulting in 8% cells. Next-generation multicomponent inks (including etching agents) have also been developed with improved fire-through contacts leading to higher cell efficiencies. The approach developed can be easily extended to other conductors such as Pt, Pd, and Au, etc. In addition, PEDOT-PSS polymer-based conductors were inkjet-printed with the conductivity asgood or better than those of polymer-based conductors.
    Original languageAmerican English
    Number of pages5
    StatePublished - 2005
    Event2004 DOE Solar Energy Technologies Program Review Meeting - Denver, Colorado
    Duration: 25 Oct 200428 Oct 2004


    Conference2004 DOE Solar Energy Technologies Program Review Meeting
    CityDenver, Colorado

    Bibliographical note

    Presented at the 2004 DOE Solar Energy Technologies Program Review Meeting, 25-28 October 2004, Denver, Colorado. Also included in the proceedings available on CD-ROM (DOE/GO-102005-2067; NREL/CD-520-37140)

    NREL Publication Number

    • NREL/CP-520-37080


    • inkjet printable contacts
    • multicomponent
    • multifunctional
    • polymer-based conductors
    • PV
    • solar cells


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