Impact of the Solvation State of Lead Iodide on Its Two-Step Conversion to MAPbI3: An In Situ Investigation - Barrit, D; Cheng, P; Tang, M-C; Wang, K; Hoang, D; Smilgies, D-M; Liu, SF; Anthopoulos, TD; Zhao, K; Amassian, A (ADVANCED FUNCTIONAL MATERIALS, 2019)