title: Stabilized Wide Bandgap MAPbBrxI3-xPerovskite by Enhanced Grain Size and Improved Crystallinity.
abstract: The light instability of CH3NH3PbIxBr3-xis one of the biggest challengesfor its application in tandem solar cells. Here we show that an improved crystallinity and grain size of CH3NH3PbIxBr3-xfilms could stabilize these materials under one sun illumination, improving both the efficiency and stability of the wide-bandgap perovskite solar cells.
authors: Department of Mechanical and Materials Engineering University of Nebraska-Lincoln Lincoln Nebraska 68588 USA.
authors: Miao
authors: M
authors: Hu
authors: Department of Mechanical and Materials Engineering University of Nebraska-Lincoln Lincoln Nebraska 68588 USA.
authors: Cheng
authors: C
authors: Bi
authors: Department of Mechanical and Materials Engineering University of Nebraska-Lincoln Lincoln Nebraska 68588 USA.
authors: Yongbo
authors: Y
authors: Yuan
authors: Department of Mechanical and Materials Engineering University of Nebraska-Lincoln Lincoln Nebraska 68588 USA.
authors: Yang
authors: Y
authors: Bai
authors: Department of Mechanical and Materials Engineering University of Nebraska-Lincoln Lincoln Nebraska 68588 USA.
authors: Jinsong
authors: J
authors: Huang
keywords: crystallinity; light stability; perovskite; tandem; wide bandgap