[14p-P08-1~24] 12.5 Organic and hybrid solar cells

[14p-P08-19] Enhanced Efficiency of Double-junction Perovskite Solar Cells Composed of Normal Structure Cell and Inverted Structure Cell

〇(D)Kei Ito¹, Kazuteru Nonomura², Ryota Kan³, Keishi Tada³, Ching Chang Lin³, Takumi Kinoshita³, Takeru Bessho⁴, Satoshi Uchida⁴, Hiroshi Segawa^1,2,3,4 (1.Utokyo Eng., 2.UTokyo KOMEX, 3.Utokyo Arts and Sci., 4.Utokyo RCAST)

Keywords:

perovskite,solar cell,double junction

To enhance the efficiency of solar cells, research on double-junction solar cells, which combine cells with different bandgaps, is advancing. Organo-metal halide perovskites are particularly well-suited for these cells due to their ability to easily adjust bandgaps by altering their composition. In this study, incident light was divided into long and short wavelengths using dichroic mirror, and two types of perovskite solar cells with different light absorption regions were combined to create double-junction spectral-splitting tandem solar cells. The efficiency of these cells was then investigated by varying the composition of the perovskites.