Hole‐Conductor‐Free Fully Printable Mesoscopic Solar Cell with Mixed‐Anion Perovskite CH₃NH₃PbI₍₃₋<i>_x</i>₎(BF₄)<i>_x</i>

Abstract

Mixed-anion perovskite CH3NH3PbI(3−x)(BF4)x has been developed and optimized to enable a highly efficient hole-conductor-free fully printable mesoscopic solar cell. The employment of BF4− in hybrid organic–inorganic halide perovskite significantly improves its optical and electric properties, such as light harvesting ability, carrier concentration, and conductivity, leading to an enhanced power conversion efficiency of 13.24%. 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.