| abstract |
Methods for manufacturing a layer stack for a thin-film solar cell and layer stacks are provided. The layer stack includes a transparent substrate having a first refraction index, a transparent conductive oxide layer comprising ZnO, wherein the transparent conductive oxide layer is deposited over the substrate and has a second refraction index, and a further layer, which is deposited between the transparent conductive oxide layer and the substrate, wherein the layer has a third refraction index in a range from the first refraction index to the second refraction index, the layer comprises a metal, and wherein the layer composition has a metal content of 0.5 to 10 weight-%. |