Figure 4From: Performance-improved thin-film a-Si:H/μc-Si:H tandem solar cells by two-dimensionally nanopatterning photoactive layerJ - V characteristic of the a-Si:H top cell, μc-Si:H bottom cell, and a-Si:H/μc-Si:H tandem cell. Power densities versus V are also inserted for the designed tandem cell and reference cell.Back to article page