Stabilized Wide Bandgap MAPbBr x I 3– x Perovskite by Enhanced Grain Size and Improved Crystallinity

作者：H. Miao, Cheng Bi, Yongbo Yuan, Yang Bai, Jinsong Huang · 发表于：Advanced Science · 年份：2015 · DOI：10.1002/advs.201500301 · 被引用次数：283 · 研究领域：Perovskite Materials and Applications、Solid-state spectroscopy and crystallography、Chalcogenide Semiconductor Thin Films

The light instability of CH3NH3PbIxBr3–x is one of the biggest challenges for its application in tandem solar cells. Here we show that an improved crystallinity and grain size of CH3NH3PbIxBr3–x films could stabilize these materials under one sun illumination, improving both the efficiency and stability of the wide-bandgap perovskite solar cells.