Mechanical transfer of pre-annealed Ag nanowire network on ITO electrode for Cu2ZnSnS4 solar cells

In this study, we demonstrated a new approach to transfer silver nanowire network onto ITO layer as a front electrode for kesterite solar cells. To transfer pre-annealed Ag nanowire network, thermal release tape was employed. Pre-annealed silver nanowire network was lifted by the tape from glass substrate and transferred onto ITO layer. The network was successfully transferred. In this way the sheet resistance of ITO layer was improved from 35 to 20Ω/□. Even though there was optical loss, the overall performance of Ag nanowire network-ITO layer was improved.