Defect compensation in formamidinium–caesium perovskites for highly efficient solar mini-modules with improved photostability

Deng, Yehao; Xu, Shuang; Chen, Shangshang; Xiao, Xun; Zhao, Jingjing; Huang, Jinsong

doi:10.1038/s41560-021-00831-8

Cited by 235 publications

(187 citation statements)

References 49 publications

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“… 64 Deng et al showed that a slight excess of FAI cannot further improve the efficiency, but can greatly alleviate the expansion process to improve the photostability of FA-based perovskites. 65 …”

Section: A Promising Photovoltaic Materials Of Fapbimentioning

confidence: 99%

Development of formamidinium lead iodide-based perovskite solar cells: efficiency and stability

Zheng

Wang

et al. 2022

Chem. Sci.

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Section: A Promising Photovoltaic Materials Of Fapbimentioning

confidence: 99%

Development of formamidinium lead iodide-based perovskite solar cells: efficiency and stability

Zheng

Wang

et al. 2022

Chem. Sci.

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“…While there is divergence in V OC , and F.F values for FAI-7 mg devices. 56 The long-term efficiency development of FAI-7.5 and pristine devices is illustrated in Figure 7. At 25 C room temperature and with a humidity levels of 40%, all of the devices were kept in an air glovebox.…”

Section: Resultsmentioning

confidence: 99%

Formamidinium post‐dripping on methylammonium lead iodide to achieve stable and efficient perovskite solar cells

Syed

Khan

Ahmad

et al. 2021

Intl J of Energy Research

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Formamidinium iodide (FAI) based perovskite solar cells (PSCs) have now been established as effective PSCs than methylammonium lead iodide perovskite for several years due to their optimal bandgap and high thermal stability.However, the FAI-based PSCs have humidity issues, due to which mixed cation perovskites are getting popular. MAI-based PSCs have better stability against high humidity but low thermal stabilities. Herein, we prepared highly crystallized, efficient, and large-grain size perovskite films via FAI postdripping process. In addition, the most promising structures FAI mixed MAPbI 3 were explored as stable and effective active layers. The post-dripping of FAI solution just after the MAPbI 3 deposition provides a robust longdistance diffusion, long carrier life, and enhanced grain sizes when compared to MAPbI 3 PSCs. Based on the facile way of mixed cation perovskite preparation by post-dripping, the power conversion efficiency (PCE) has risen from 15.24% to 17.52% in comparison with the pristine devices. This results in the best quality and large grain perovskite films which enhanced the PSCs' performance by reducing defect density and regulating the crystallization rate.

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“…Ethlammonium chloride also was employed in combination with a facile solvent bathing approach to achieve high-quality MAPbI 3 films, resulting in well-oriented and micron-sized grains and corresponding PSMs with a PCE of 7.36% (aperture area 25 cm 2 ) [ 91 ]. Deng et al found a slight excess of AX, where A is FA or the Cs cation, can improve the photostability by compensating iodide vacancies and suppressing ion migration and defect generation [ 16 ]. In addition, Lewis base, similar to dimethyl sulfoxide (DMSO) and N-methylpyrrolidone (NMP), is also a satisfactory additive to optimize the crystallization process of perovskite film.…”

Section: Improved Performance Of Large-area Psmsmentioning

confidence: 99%

“…On the other hand, the poor long-term stability of PSCs remains the biggest obstacle to its industrialization process. Basically, the device stability tends to be affected by two aspects: (1) the irreversible degradation of the perovskite layer caused by an inappropriate environmental factor, the organic molecule volatilization [ 16 ], the O 2 /H 2 O permeation [ 17 ], high temperature [ 16 ], etc. ; (2) the device instability that is related to the charge transfer materials [ 18 ], the absorption materials [ 19 ], and the electrode materials [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Progress in Perovskite Solar Cells towards Commercialization—A Review

Wang

Xuan

et al. 2021

Materials

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In recent years, perovskite solar cells (PSCs) have experienced rapid development and have presented an excellent commercial prospect as the PSCs are made from raw materials that are readily and cheaply available depending on simple manufacturing techniques. However, the commercial production and utilization of PSCs remain immature, leading to substantial efforts needed to boost the development of scalable fabrication of PSCs, pilot scale tests, and the establishment of industrial production lines. In this way, the PSCs are expected to be successfully popularized from the laboratory to the photovoltaic market. In this review, the history of power conversion efficiency (PCE) for laboratory-scale PSCs is firstly introduced, and then some methods for maintaining high PCE in the upscaling process is displayed. The achievements in the stability and environmental friendliness of PSCs are also summarized because they are also of significance for commercialization. Finally, this review evaluates the commercialization prospects of PSCs from the economic view and provides a short outlook.

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Defect compensation in formamidinium–caesium perovskites for highly efficient solar mini-modules with improved photostability

Cited by 235 publications

References 49 publications

Development of formamidinium lead iodide-based perovskite solar cells: efficiency and stability

Development of formamidinium lead iodide-based perovskite solar cells: efficiency and stability

Formamidinium post‐dripping on methylammonium lead iodide to achieve stable and efficient perovskite solar cells

Progress in Perovskite Solar Cells towards Commercialization—A Review

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