Enhancement of Photoelectric Performance Based on Ultrathin Wide Spectrum Solar Absorption in Cruciform Microstructure Germanium Solar Cells

In this paper, the solar absorption level of PEDOT:PSS/Ge organic and inorganic hybrid cells (HSCs) with different parameters cruciform microstructure (CM) is studied, using finite-difference time domain (FDTD) method. The light in HSCs CM above 90% range 300 nm to 1300 nm. Under AM1.5 spectrum, average absorptivity energy also at a very high level. At same time, we use DEVICE software calculate electrical properties, such as open-circuit voltage (Voc), short-circuit current density (Jsc), maximum power (Pmax). simulation results show that Pmax improves 72.16% from planar HSCs. Besides, order study mechanism containing CM, logarithmic plots electric field intensity HSCs, are analyzed wavelengths. work shows an excellent light-trapping effect, which reduces surface reflectivity greatly photoelectric conversion efficiency Ge cells.