[10a-PB1-1~33] 12.5 Organic, Perovskite, and hybrid solar cells

[10a-PB1-33] Deposition of the TiO₂ Electron Transport Layer in Fiber-Shaped Perovskite Solar Cells

〇Akio Seino¹, Masato Sakaida¹, Yusuke Ichino¹, Tatsuo Mori¹, Tsuyoshi Kamimura², Yoshiyuki Seike¹ (1.Aichi Inst.Tech Univ, 2.Kamimura Vacuum Plating Industry)

Keywords:

Perovskite Solar Cells

In this study, we aimed to fabricate a fiber-shaped perovskite solar cell using a titanium wire with a diameter of 250 µm, and investigated surface smoothing of the titanium wire and TiO₂ film formation for the electron transport layer. Electropolishing using Ethaline produced a relatively smooth surface at 14V for 40 min. In addition, the change in interference color after heat treatment at 500 ℃ suggested the formation of a TiO₂ film. Furthermore, a mesoporous TiO₂ layer was deposited by air-spray coating, and increasing the flow rate improved the continuity and uniformity of the film.