The 2D/3D perovskite based solar cell (2D/3D PSCs) finally achieves a PCE of 15.01% by introducing CF3PMAI, and the unsealed PSCs can maintain 90% initial efficiency within 500 hrs. Our approach provides a moisture-resistant 2D/3D perovskite film heterostructure, where the hydrophobic ...
perovskiteLarge-size organic halide passivation has been considered an efficient approach to enhance the perovskite solar cell(PSC)efficiency and stability.Herein,a facile posttreatment strategy was demonstrated,wherein trifluoromethyl-phenethylamine hydrobromide(CF_(3)-PEABr)is firstly used to passivate the...