Optimization of Recombination Layer in the Tunnel Junction of Amorphous Silicon Thin-Film Tandem Solar Cells

<table>Measured QE of solar cells with different i<sub>2</sub>/i<sub>1</sub> ratio.</table>

International Journal of Photoenergy

Figure 5: Optimization of Recombination Layer in the Tunnel Junction of Amorphous Silicon Thin-Film Tandem Solar Cells 