fig1

Figure 1. The schematic diagram of the experimental setup and photovoltaic performance of n-type single-junction GaAs solar cells under monochromatic light irradiation of 635 nm with a power density of 20 mW cm^-2. (A) Schematic diagram of the experimental setup for photovoltaic performance measurement; (B) J-V/P-V solid/dash curves at 300/160 K. Here, PCE₃₀₀ and PCE₁₆₀ denote the PCE of the cell at 300 K and 160 K, respectively; (C) The forward-reverse J-V curves at 300/160 K. PCE: Power conversion efficiency; J-V: current density-voltage; P-V: power density-voltage.