【摘要】 氧化镍（NiO_x）作为无机p型半导体，常用于倒置钙钛矿太阳能电池（PSCs）中的空穴传输层（HTL），但本身存在的高缺陷密度和与钙钛矿不相匹配的能级排布限制了PSCs的能量转换效率。本文通过引入双自组装单分子层修饰氧化镍界面，钝化氧化镍材料自身缺陷，改善能级匹配，促进了界面处光生载流子的提取和传输，提高了PSCs的开路电压（Voc）和填充因子（FF），最终将刮涂氧化镍基PSCs的效率提升到20.38%，而且未封装的器件在氮气氛围中用85℃老化1 000 h后仍维持原始效率的96%。更重要的是，我们以此制备了孔径面积为60.84 cm~2、由13节子电池串联而成的钙钛矿组件，效率达到了17.04%。更多还原

【Abstract】 Nickel oxide(NiO_x), an inorganic p-type semiconductor, is commonly used as the hole transporting layer(HTL) for inverted perovskite solar cells(PSCs). However, the high defect density of NiO_x and mismatched energy levels with the perovskite layer strongly limit the efficiency of PSCs. In this work, the co-assembled monolayer is introduced to modify the interface of NiO_x, which was demonstrated to passivate the defects and improve the energy level alignment, leading to the enhancement of charge extraction and transmission at the interface. Finally, the blade-coated PSCs yield a power conversion efficiency of 20. 38% due to the improvement on open circuit voltage(Voc) and filling factor(FF). Moreover, the device without encapsulation can maintain 96% of the initial efficiency after aging at 85 ℃ for 1 000 h in nitrogen atmosphere. More importantly, we have fabricated a perovskite solar module with an aperture area of 60. 84 cm~2, which is composed of 13 sub cells in series, and the efficiency has reached 17. 04%.更多还原