perovskite solar cellssecondary aminestabilityIn article number 1903559, Edward H. Sargent, Zhijun Ning, and co﹚orkers intentionally include a secondary amine, dimethylamine, in MAPbI3 perovskite to improve the rigidity and steric hindrance for water adsorption, giving rise to reduced defect density ...
“We believe this efficiency is competitive with the highest reported for inverted perovskite solar cells composed of a mixture of 2D and 3D salts in the precursor solution, although with a less complex active layer,” the group said.Additives that can form 2D Ruddlesden–Popper (RP) per...
Doping of perovskite semiconductors1 and passivation of their grain boundaries2 remain challenging but essential for advancing high-efficiency perovskite solar cells. Particularly, it is crucial to build perovskite/indium tin oxide (ITO) Schottky co
Highly crystalline SnO2 is demonstrated to serve as a stable and robust electron-transporting layer for high-performance perovskite solar cells. Benefiting from its high crystallinity, the relatively thick SnO2 electron-transporting layer (≈120 nm) provides a respectable electron-transporting property to...
The short‐circuit current density of inverted perovskite solar cells is unsatisfactory due to the intrinsic relatively low electron mobility and electrical conductivity of PC61BM. To solve this problem, a solution‐processed mixed‐fullerene derivative electron transporting material by mixing PC61BM ...
The perovskite film fabricated from the high quality PbI2 film is highly pure, smooth and very dense even without any pinhole. The champion cell achieves a remarkable fill factor (FF) of 0.85, which is the highest value reported in perovskite solar cells. The FF value is also very ...
One of the possible causes of degradation of perovskite solar cells is the instability of the electron transporting layer. In this regard, design of air stable electron transport organic semiconductors, compatible with perovskite energy levels presents challenges due to inherent vulnerability to traps, ...
Northwestern University researchers have raised the standards again for perovskite solar cells with a new development that helped the emerging...
| 近日,上海交通大学材料学院韩奇峰副教授和韩礼元教授在钙钛矿太阳能电池稳定性领域获得重要进展,相关成果“Reinforcing self-assembly of hole transport molecules for stable inverted perovskite solar cells”发表在国际顶级期刊Science上。 材料学院2021级博士唐宏才、2018级博士沈志超为论文共同第一作者,韩奇峰副教授、韩...
Fullerene derivatives are extensively employed in inverted perovskite solar cells due to their excellent electron extraction capabilities. However, [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) agglomerates easily in solution and exhibits a relativel