Citation: Hao, Feng; Stoumpos, Constantinos C.; Liu, Zhao; Chang, Robert P. H.; Kanatzidis, Mercouri G. (2014). Controllable Perovskite Crystallization at a Gas--Solid Interface for Hole Conductor-Free Solar Cells with Steady Power Conversion Efficiency over 10%. Journal of the American Chemical Society, , pp. 141106073145004-.