[16p-Z24-1~18] 12.3 Functional Materials and Novel Devices

[16p-Z24-7] Development of Perovskite/Silicon Tandem Solar Cells

〇Takeshi Gotanda^1,5, Kohei Nishimura², Mengmeng Chen², Daisuke Hirotani^2,4, Shuji Hayase², Hitoshi Sai³, Takuya Matsui³, Naoko Minowa¹, Tomohiro Tobari¹, Yutaka Saita¹ (1.Toshiba Energy Systems & Solutions, 2.Univ. of Electro-Communications, 3.Advanced Industrial Science and Technology, 4.Kyushu Institute of Technology, 5.Toshiba)

Keywords:perovskite, tandem, solar cells

We are developing perovskite/silicon tandem solar cells to overcome the power conversion efficiency of silicon solar cells. We demonstrated the open circuit voltage (~ 1.5 V) more than doubles of conventional silicon solar cells. The power conversion efficiency was increased in a week. The phenomenon occurred by spattering of TCO onto the tandem cells.