摘要： Perovskite solar cells (PSCs) have been attracting much attention during the past years due to the advantages of perovskite materials such as high light absorption coefficient, excellent charge mobility, long charge diffusion length, tunable direct band gap, low cost, etc., exhibiting great potential as the next-generation photovoltaic technology [1-3]. The certificated power conversion efficiency (PCE) as high as 25.2% has been achieved for single-junction PSCs with an active area of 0.0937 cm2 (https://www.nrel.gov/pv/assets/pdfs/best-research-cell-efficiencies.20200128.pdf). However, the state-of-the-art PCE of the large-area PSCs with the active area larger than 10 cm2 (minimodules) is 18.04% (19.276 cm2) (http://solar.in-en.com/html/solar-2352538.shtml), which is still much lower than the value of 79 cm2 silicon solar cell with the PCE of 26.7%. Fig. 1 shows nearly 50 published papers during the past years about the research progress on the PCEs of mesoporous and planar (normal and inverted) structural large-area PSC minimodules, of which the typical active area is from 10 to 100 cm2, and the five cases with the size larger than 100 cm2 are labelled. It should be mentioned that the reported results from companies are not included in Fig. 1 because the detailed device information is not clear. PSC minimodules were first reported in 2014, and much progress has been achieved subsequently. At present, it could normally achieve mesoporous or planar structural PSC minimodules with the PCEs between 15% and 18%. Meanwhile, stability is another very important factor that directly determines the actual applications of PSCs [2,4]. In order to accelerate the commercialization of PSCs, it is highly desired to further develop large-area PSCs and modules with high efficiency and good stability.