All-sputtered CdS/CdTe solar cells on polyimide

We have made CdS/CdTe solar cells on polyimides from different sources. These cells were fabricated using sputtered zinc oxide doped with aluminum as the transparent conducting oxide. The CdS and CdTe were also deposited by sputtering. In this paper we report properties of the sputtered AZO and its changes with CdCl₂ heat treatments. We have achieved a cell efficiency of 10.5% at air mass 1.5G illumination.