期刊
ACS ENERGY LETTERS
卷 7, 期 8, 页码 2771-2780出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsenergylett.2c01488
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资金
- National Key Research and Development Program of China [2018YFB1500103]
- National Natural Science Foundation of China [62104115, U21A2072]
- Overseas Expertise Introduction Project for Discipline Innovation of Higher Education of China [B16027]
- Tianjin Science and Technology Project [18ZXJMTG00220]
- Key R&D Program of Hebei Province [19214301D]
- Natural Science Foundation of Tianjin [20JCQNJC02070]
- China Postdoctoral Science Foundation [2021T140341, 2020T130317, 2020M680864]
- Haihe Laboratory of Sustainable Chemical Transformations
- Fundamental Research Funds for the Central Universities, Nankai University
A two-step sequential deposition method has been successfully applied to narrow-bandgap perovskite solar cells, resulting in improved efficiency and area for monolithic perovskite/silicon tandem solar cells, as well as for an enlarged-scaled tandem device.
A two-step solution sequential deposition has been successfully applied to narrow-bandgap (below 1.60 eV) perovskite solar cells (PSCs), while it has not been widely used in wide-bandgap PSCs and monolithic tandem solar cells (TSCs). Here, a lead halide complex is formed by introducing a formamidinium iodide (FAI) and rubidium acetate (RbAc) into the first step. The results show that the lead halide complex alters the crystallization kinetics and promotes a prominent orientation (100) growth of the perovskite film, resulting in an efficiency of 27.64% for monolithic perovskite/silicon TSCs. Additionally, an enlarged-scaled tandem device with an efficiency of 22.81% (active area of 11.879 cm(2)) is also achieved, which is one of the most efficient devices with an area greater than 10 cm(2). This work provides an effective strategy to fabricate perovskite/silicon TSCs with high performance, reproducibility, and large area via the two-step solution method, which will accelerate the industrialization of perovskite/silicon tandem technique.
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