New Results in Optical Modelling of Quantum Well Solar Cells

Figure 8

(a) Quantum efficiency of the transitions between resonant levels for GaAs as a function of the prism refraction index. It is considered the following two main cases: (1) prism angle 𝛼=𝜋/6 and incidence angle: 𝑖=0 rad (red curve), 𝑖=0.8 rad (green curve), 𝑖=1 rad (black curve). (2) prism angle 𝛼=2𝜋/3 incidence angle 𝑖=0 rad (blue curve), 𝑖=0.8 rad (violet curve), 𝑖=1 rad (brown curve). (b) Quantum efficiency of the transitions between resonant levels for GaAs as a function of the incidence angle for the ray falling on the prism. (c) Quantum efficiency of the transitions between confinement levels for Al_𝑥Ga_1−𝑥As as a function of the prism refraction index. (d) Quantum efficiency of the transitions between confinement levels for AlGaAs as a function of the incidence angle of the ray falling on the prism. (e) Quantum efficiency of the transitions between confinement levels for Al_𝑥Ga_1−𝑥As as a function of the aluminium quantity; prism refraction index is 𝑁𝑝=1.5. (f) Quantum efficiency of the transitions between confinement levels for Al_𝑥Ga_1−𝑥As as a function of the aluminium quantity; prism refraction index is 𝑁𝑝=2.

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