Interfacial electron transfer barrier at compact TiO2/CH3NH3PbI3 heterojunction

• Main Authors: Xing, Guichuan, Wu, Bo, Chen, Shi, Chua, Julianto, Yantara, Natalia, Mhaisalkar, Subodh, Mathews, Nripan, Sum, Tze Chien
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2015
• Subjects: DRNTU::Engineering::Materials
• Online Access: https://hdl.handle.net/10356/103724; http://hdl.handle.net/10220/25825
• Institution: Nanyang Technological University

Low-temperature solution-processed CH3NH3PbI3 interfaced with TiO2 has recently been demonstrated as a highly successful type-II light harvesting heterojunction with ≈20% efficiency. Therefore, an efficient ultrafast photoexcited electron transfer from CH3NH3PbI3 to TiO2 is expected. However, by pro...