7In this work, we investigated the properties of silver and gold enamels as potential back 8 contacts for Cu(In,Ga)Se2 (CIGS) solar cells. The enamels were deposited on ceramic 9 tiles by non-vacuum printing techniques. Thus, we are proposing a development of 10 integrated photovoltaic tile for the first time. We also explained the CIGS synthesis 11 procedure using co-precipitation of selenites precursors. To deposit the precursor 12 powders on the substrate, a doctor blade method is applied. The interface morphology 13 between ceramic tile, back contact, and CIGS absorber was studied as a critical factor 14 for the final solar cell performance. The thermal treatment effect on the back contact 15 properties was also reported.
16Excellent compatibility between CIGS and gold layer was observed, keeping thickness absorber were obtained when silver enamels were used.
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