Mesostructured Hybrid based-Perovskite Solar Cell Optical and Electrical Modeling: Influence of the Incident Light Wavelength

Analytical model is developed to give insight into the influence of the incident wavelength of the incoming light illumination on optical and electrical properties mesostructured hybrid perovskite-based solar cell for different photoactive layer thickness. Bruggeman theory and T-matrix are used to compute the analytical expressions of optical parameters such as absorption coefficient and generation rate. Then, the short-circuit current density is deduced from the continuity equation. The absorption coefficient of the photoactive layer decreases with high incident wavelength of the incoming light of the visible spectrum (400-800 nm) while the absorbance and generation rate grow up with the phototactive layer thickness. The current density increases with illuminated wavelength ranging 400-520 nm while it decreases with higher active medium (TiO2 +Perovskite) layer thickness ranging from 500 nm to 1.7 µm. Beyond to 520 nm of the wavelength of the incoming light, the current density decreases to vanish at 800 nm. As finding in the literature, it can be noticed high absorption, charge carriers generation and current density for low wavelength in the visible spectrum which correspond to high energies.