Article pubs.acs.org/JACS
Controllable Perovskite Crystallization at a Gas−Solid Interface for Hole Conductor-Free Solar Cells with Steady Power Conversion Efficiency over 10% Feng Hao,† Constantinos C. Stoumpos,† Zhao Liu,‡ Robert P. H. Chang,‡ and Mercouri G. Kanatzidis*,† †
Department of Chemistry, and ‡Department of Materials Science and Engineering, and Argonne-Northwestern Solar Energy Research (ANSER) Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States S Supporting Information *
ABSTRACT: Depositing a pinhole-free perovskite film is of paramount importance to achieve high performance perovskite solar cells, especially in a heterojunction device format that is free of hole transport material (HTM). Here, we report that high-quality pinhole-free CH3NH3PbI3 perovskite film can be controllably deposited via a facile low-temperature (
