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The performance of solar cells is determined by three factors:the open-circuit voltage (Voc),short-circuit current density (Jsc),and fill factor (FF).The Voc and FF are determined by the material bandgap and the series/shunt resistance,respectively.However,Jsc is determined by the amount of incident light in addition to the bandgap of the material.In this study,a moth-eye pattem was formed on a glass surface via direct printing to increase the amount of incident light and thus increase Jsc.The moth-eye pattem is a typical antireflection patt that reduces the reflection by gradually increasing the refractive index.A flat perovskite solar cell (F-PSC) and a moth-eye pattemed perovskite solar cell (M-PSC) had Jsc values of 23.70 and 25.50 mA/cm2,respectively.The power-conversion efficiencies of the F-PSC and M-PSC were 19.81％ and 21.77％,respectively.