For this reason, although total absorption, A(λ), of perovskite layer is only about 0.002 for wavelength over 780 nm, as shown in inset of Fig. 2 (a), this absorption can repeat thousand times and effectively promote overall PCE of perovskite solar cell.
You have full access to this open access article Perovskite solar cells (PSCs) have shown high optical absorption and consequently provide high conversion efficiency with stable performance. In our work, CH 3 NH 3 PbI 3 (MAPbI 3) as an absorber layer is analyzed for different crystalline structures.
Light scattering becomes more significant at higher radii and is higher than absorption by a factor 2–5 above 40 nm. It may then redirect part of the light to propagation directions guided inside the active layer. We now assess the optical performance of a perovskite solar cell doped with gold nanoparticles.
However, the light absorption of the ultrathin perovskite solar cell is not satisfactory. The promising pathways to design absorption-enhanced ultrathin perovskite solar cells are plasmonic light trapping and anti-reflection coating.
Absorption spectrum of MAPbX 3 (X = I, Br, Cl) hybrid halide perovskite as a function of energy, obtained from DFT. 3.2. Solar cell simulation Fig. 4 compares the absorption spectrum acquired from DFT with the conventional spectrum in the solar cell simulator, SCAPS, calculated by Equation (9). The difference is clear.
High bandgap perovskite solar cells have made great strides in improving their efficiency. However, low bandgap perovskite materials have received interest as a means to increase the solar spectrum absorption range .