Figure 3 | Scientific Reports

Figure 3

From: III-V/Si hybrid photonic devices by direct fusion bonding

Figure 3

AlGaAs/Si dual-junction solar cell.

(a) Cross-sectional schematic diagram of the fabricated AlGaAs/Si dual-junction solar cell. The thickness and doping concentration of each layer are indicated. The abbreviation BSF stands for back surface field. (b) Cross-sectional scanning electron microscope image of the solar cell. Inset shows the light I–V and power-voltage characteristics of the solar cell under a 600 nm-peaked halogen white light source of a one-sun intensity (100 mW cm−2).

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