[11a-N322-1~9] 12.5 Organic solar cells

▲ [11a-N322-5] Green Synthesized NiO_x as the Hole Transport Layer for Inverted Perovskite Solar Cells

〇(D)Ersan Yudhapratama Muslih¹, Md. Shahiduzzaman¹, Md. Shahinuzzaman¹, Masahiro Nakano¹, Makoto Karakawa¹, Kohshin Takahashi¹, Jean Michel Nunzi¹, Md. Akhtaruzzaman², Tetsuya Taima¹ (1.Kanazawa Univ., 2.Universiti Kebangsaan Malaysia Univ.)

Keywords:Perovskite Solar Cells, Green synthesis Nickel Oxide, Nickel Oxide HTL

Since being discovered by Park in 2012 [1], perovskite solar cells (PSCs) have triggered rapid development and a power conversion efficiency (PCE) of 25.5%. Typically, inverted PSCs used PEDOT: PSS as the hole transport layer (HTL). However, this high cost and degradation of organic matter is a major concern for PSCs performance. Therefore, inorganic HTL materials such as NiO_x attract more attention due to superior hole mobility and outstanding stability. Additionally, NiO_x showed a favorable energy level with perovskite film and most importantly low-cost, and environment-friendly chemical synthesis capabilities. In this study, NiO_x particles from the green synthesis process have successfully tuned from micrometer-sized to nanoparticle size of ranged 10 nm, followed by preparing a smooth and compact NiO_x film and applied it as the HTL in inverted PSCs.