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Imaging real-time amorphization of hybrid perovskite solar cells under electrical biasing
Min-cheol Kim, Namyoung Ahn, Diyi Cheng +11
Perovskite solar cells have drawn much attention in recent years, owing to its world-record setting photovoltaic performances. Despite its promising use in tandem applications and…
Impermeable Inorganic Walls Sandwiching Photoactive Layer toward Inverted Perovskite Solar and Indoor-Photovoltaic Devices
Jie Xu, Jun Xi, Hua Dong +11
Interfaces between the perovskite active layer and the charge-transport layers (CTLs) play a critical role in both efficiency and stability of halide-perovskite photovoltaics. One…
Decrystallization of CH3NH3PbI3 perovskite crystals via polarity dependent localized charges
Min-cheol Kim, Namyoung Ahn, Eunhak Lim +6
Despite soaring performance of organic-inorganic hybrid perovskite materials in recent years, the mechanism of their decomposition at actual operation condition has been elusive. H…
Atomistic mechanism for trapped-charge driven degradation of perovskite solar cells
Kwisung Kwak, Eunhak Lim, Namyoung Ahn +4
It is unmistakably paradoxical that the weakest point of the photoactive organic-inorganic hybrid perovskite is its instability against light. Why and how perovskites break down un…