摘要
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 pattern was formed on a glass surface via direct printing to increase the amount of incident light and thus increase Jsc-The moth-eye pattern is a typical antireflection pattern that reduces the reflection by gradually increasing the refractive index.A flat perovskite solar cell(F-PSC)and a moth-eye patterned perovskite solar cell(M-PSC)had Jsc values of 23.70 and 25.50 mA/cm^2,respectively.The power-conversion efficiencies of the F-PSC and M-PSC were 19.81%and 21.77%,respectively.
基金
This work was supported by the Technology Innovation Program(No.N0002310)funded by the Ministry of Trade,Industry&Energy(MOTIE,Republic of Korea),Creative Materials Discovery Program through the National Research Foundation of Korea(NRF)funded by M inistry of Science and ICT(No.NRF-2018M3D1A1058972)
the Materials and Components Technology Development Program program of MOTIE/KEIT(No.10080352,Development of polymer-based adhesive light concentration film for solar cell with 85%light transmittance,1 m2 area).
