A spray deposition procedure for the fabrication of polycrystalline MAPbBr3 thick films (20-100 μm) is developed and highly efficient (>5.5% under AM1.5 sunlight) hole-transport-material free perovskite solar cells are successfully… Click to show full abstract
A spray deposition procedure for the fabrication of polycrystalline MAPbBr3 thick films (20-100 μm) is developed and highly efficient (>5.5% under AM1.5 sunlight) hole-transport-material free perovskite solar cells are successfully made with 40 μm thick MAPbBr3 films.
               
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