【摘要】 为了调节钙钛矿薄膜的结晶动力学，降低其缺陷浓度，六氟磷酸甲胺（MAPF₆）作为添加剂被引入钙钛矿前驱体溶液。傅里叶变换红外（FT-IR）和稳态发光（PL）光谱表明MAPF₆和钙钛矿之间存在氢键作用。通过X-射线衍射（XRD）、扫描电镜（SEM）和空间电荷限制电流（SCLC）等表征发现，引入MAPF₆之后，钙钛矿薄膜的晶粒尺寸变大，结晶度提高，缺陷浓度降低。最终，加入添加剂的器件效率得到提升，从20.77%（参比器件）提升至22.45%。更多还原

【Abstract】 In order to modulate the crystallization kinetics of perovskite film and reduce its defect density, methylamine hexafluorophosphorate（MAPF₆） as an additive was introduced into the perovskite precursor solution. Fourier transform infrared（FT-IR） and steady-state luminescence（PL） spectra showed that there was hydrogen bonding between MAPF₆ and perovskite. By conducting X-ray diffraction（XRD）, scanning electron microscopy（SEM） and space charge limited current（SCLC） characterizations, we found that the introduction of MAPF₆ increased the grain size and crystallinity, and reduced defect density of perovskite film. As a result, the efficiency of MAPF₆-treated device was greatly improved from 20.77%（reference device） to 22.45%.更多还原