KEYWORDS: Solar cells, Solar radiation, Multijunction solar cells, Solar radiation models, Solar energy, Absorption, Gallium arsenide, Germanium, Physics, Sun
The effect of Spectrum Range Limitation (SRL) to the efficiency and performances of multijunction solar cells
Al0.3Ga0.7As/GaAs/InP/Ge was investigated using simulation approach. Simulations were done using two different
models, first with No Spectrum Range Limitation (NSRL) and the second with SRL. In the first model each subcell
(material) was free to absorb AM1.5G solar radiation spectrum from 280 nm up to 2500 nm, while for the second model,
the absorption spectrum for each subcell depends on the cut-off wavelength of its previous subcell. For each model, a
non-identical current flow in each layer was simulated. The results have shown that SRL dropped the efficiency by
almost a half (44.90 %) compared to simulation with NSRL. All current-producing simulations were performed using
freely available PC1D program.
We have investigated the characteristics of local density of optical states (LDOS) at photonic band gap resonant
wavelength of an asymmetric waveguide grating based on Green’s function formulation. It is found that the LDOS of the
considered structure exhibits different characteristics in its localization between the upper and lower resonant
wavelengths of the corresponding photonic band gap edges.
Conference Committee Involvement (1)
Third International Seminar on Photonics, Optics, and Its Applications (ISPhOA 2018)
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