Amorphous Inorganic Electron‐Selective Layers for Efficient Perovskite Solar Cells: Feasible Strategy Towards Room‐Temperature Fabrication

Inorganic electron-selective layers (ESLs) are fabricated at extremely low temperatures of 70 °C or even 25 °C by a simple solution route. This is of great significance because the attained PCEs confirm the feasibility of room-temperature coating of inorganic amorphous ESLs through a solution method for the first time. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.