Design of high efficiency perovskite/silicon tandem solar cells based on plasmonic enhancement of metal nanosphere

Perovskite/silicon tandem solar cells, by combining perovskite as a top absorber material and crystalline silicon bottom material, can expand enhance the utilization of spectrum. Therefore, such structure shows great potential to break through Shockley-Queisser (SQ) limit 31%－33% for single-junction (SJ) cells is considered one most promising approaches achieving higher performance in photoelectric conversion cells. Reducing optical losses from surface interfaces cell device making more photons propagate into active layers are key factors goal. In this paper, enhancement spectral response energy efficiency perovskite/silicon depending on Au, Ag, Cu, Al nanosphere studied using finite difference time domain method rigorous coupled-wave analysis. The results show that owing introduction metal nanosphere, transmittance propagating promoted significantly. achieves an apparent increase both total absorbance quantum efficiency. observed weighted average increased 73.16% 23.09% 79.15% 24.97%, respectively, with 8.14% improvement coated optimized nanospheres.