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Tin halide perovskite solar cells are promising for the next generation of highly efficient photovoltaics. Their commercialization can be accelerated by increasing their stability in moisture and oxygen. Herein, an n‐type organic molecule (IO‐4Cl) is applied as an interlayer between the perovskite films and electron transport layers in p‐i‐n structured devices. The electron‐rich indacenodithieno‐[3,2‐b]thiophene...
In optimizing perovskites with ionic liquid (IL), the comparative study on Lewis acid‐base (LAB) and hydrogen‐bonding (HB) interactions between IL and perovskite is lacking. Herein, methyl is substituted for hydrogen on 2‐position of imidazolium ring of N‐heterocyclic carbene (NHC) type IL IdH to weaken HB interactions, and the resulting N‐heterocyclic olefin (NHO) type IL IdMe with softer Lewis base...
As an inorganic hole transport material (HTM), nickel oxide (NiOx) is widely used in perovskite solar cells (PSCs) due to its low cost and intrinsic stability. However, on account of its poor film formation on perovskite, the low power conversion efficiency (PCE) and stability of regular NiOx‐based PSCs is a main obstacle for commercialization. Here, a solution‐processed inorganic/organic hybrid hole...