Full day modelling of V-shaped organic solar cell

Effect of oblique incidence angle of sunlight on the optimized folding angle of V-shaped organic solar cells

“…3 is similar to that of the calculated maximum photocurrent density in Ref. 13, where V-shaped tandem organic solar cell has the two active materials of APFO-3:PCBM and APFO-Green5:PCBM. Fig.…”

“…In the case of the planar OSC, it was theoretically predicted that the optimal active-layer thickness determined from the variation of the short-circuit current in normal incidence could be different from that based on the variation of the generation energy density per day, which was obtained by integrating the angular response of the electric power density during daytime [12]. Recently, the maximum photocurrent densities generated from the VOSC with different geometries and tilting angles were calculated as a function of the incidence angle of sunlight [13]. However, it has not yet been investigated whether an optimal folding angle of the VOSC to maximize the output electric power under normal incidence can be different from that to maximize the generation energy density per day.…”

Plasmonic Forward Scattering Effect in Organic Solar Cells: A Powerful Optical Engineering Method

“…The use of optical engineering to enhance light absorption is inevitable in OPVs due to the trade-off relationship between the absorption capabilities and the IQE. Various approaches, including tandem structures267, surface texturing8, metal nanogratings9, resonance cavity10 and ray-optical light trapping systems111213 have been suggested to increase the optical absorption. Among these approaches, recently there has been growing interest in the use of metal nanoparticles (MNPs) in OPVs71415161718192021222324252627282930 because the localized surface plasmon resonance (LSPR) effect of MNPs has the potential to boost the absorption of the active layer.…”

Understanding the angle-independent photon harvesting in organic homo-tandem solar cells

“…Hence, the optical field distribution within the layer stack and, consequently, the charge carrier generation profile are dominated by thin-film interferences which depend on the thicknesses and the complex refractive indices of the various layers [16][17][18]. As a consequence, intuitively, one would expect a strong susceptibility of the tandem solar cells' photo currents to the angle of light incidence due to its advanced thin-film device architecture [2,19]. Surprisingly, in organic tandem solar cells comprising molecular absorber layers, the photo current generation was reported to be angle-independent, with the question remaining why the integrated absorption profiles of the subcells are mostly unaffected by the angle of illumination [20].…”