CsPbIBr2钙钛矿太阳能电池的制备及光电性能研究

Study on preparation and photoelectric properties of CsPbIBr2 perovskite solar cells

摘要:

通过改变二氧化钛浆料和无水乙醇的质量比（m18NRT∶mEth=1∶4，1∶8，1∶10，1∶12），并调节钙钛矿薄膜的退火温度（160，190，220 ℃）探究钙钛矿太阳能电池最优制备条件．结果显示，当质量比为1∶10且钙钛矿薄膜退火温度为190 ℃时，薄膜晶粒大且致密，缺陷密度低，最终电池效率为5.43%，短路电流密度（Jsc）为10.05 mA/cm2，开路电压（Voc）为1.14 V，填充因子（FF）为45.29%．

Abstract:

The optimal preparation conditions of perovskite solar cells were explored by changing the mass ratio of 18-NRT slurry to anhydrous ethanol (1:4, 1:8, 1:10and 1:12) and adjusting the annealing temperature of the perovskite film (160 ℃, 190 ℃ and 220 ℃). The results show that when the mass ratio of 18-NRT slurry toanhydrous ethanol is 1:10, and the annealing temperature of perovskite film is 190℃, the efficiency of CsPbIBr2 is 5.43%, the short-circuit current density (Jsc) is 10.05 mA/cm2, the open-circuit voltage (Voc) is 1.14 V, and the filling factor (FF) is 45.29 %. This is because the grains size of the CsPbIBr2 film is large and dense, and the defect density is low.