Reveal the growth mechanism in perovskite films via weakly coordinating solvent annealing

Wang, Yafei; Liu, Detao; Zhang, Peng; Zhang, Ting; Ahmad, Waseem; Ying, Xiangxiao; Wang, Feng; Li, Jian; Chen, Li; Wu, Jiang; Chen, Zhi David; Li, Shibin

doi:10.1007/s40843-018-9263-7

Cited by 12 publications

(2 citation statements)

References 55 publications

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“…7(g) and 7(h)). Above all, the annealing of antisolvent does have a significant effect on the quality of perovskite films, including crystallinity, grain size and grain boundary [51]. The key point in PSS approaches is the adsorption of poor solvent in the preheating film.…”

Section: Solvent Engineeringmentioning

confidence: 99%

Space-confined growth of metal halide perovskite crystal films

Liu

Zeng

et al. 2020

Nano Res.

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Metal halide perovskites, as a new generation of optoelectronic materials, have attracted a great deal of interest due to their remarkable intrinsic properties. Due to the excellent optoelectronic properties, the perovskite crystals are widely used in lasers, photodetectors, X-ray detectors and solar cells. Considering the device performance and fabrication requirements, proper thickness of the crystal is required to avoid carrier loss and simultaneously ensure sufficient light absorption, which can realize the full potential of its excellent carrier transport property. Thus, the fabrication of perovskite crystal in a thin film with an adjustable thickness is highly desirable. The space-confined method has been demonstrated to be an effective way of preparing perovskite with controlled thickness. In this method, the thickness of perovskite can be regulated flexibly in a geometric confined space. Moreover, the size, quality and architecture of perovskite crystal films are also major concerns for practical photoelectric devices, which can also be optimized by the space-confined method owing to its good adaptability towards various modified strategies. In a word, the space-confined method is not only a simple and conventional way to adjust the thickness of perovskite crystal films, but also provides a platform to optimize their size, quality and architecture through applying appropriate strategies to the confined space. Herein, we review the space-confined growth of perovskite crystal films. Particularly, various modified strategies based on the space-confined method applied to the optimization of thickness, size, quality and architecture are highlighted. Then the stability investigating and component regulating of perovskite crystal films would be also mentioned. Furthermore, the correlation between the perovskite thickness and the device performance is discussed. Finally, several key challenges and proposed solutions of perovskite thin films based on the space-confined method are discussed.

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Section: Solvent Engineeringmentioning

confidence: 99%

Space-confined growth of metal halide perovskite crystal films

Liu

Zeng

et al. 2020

Nano Res.

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“…[33][34][35][36] Xiao et al [37] first introduced SA for MAPbI 3 with N,N-dimethylformamide (DMF) vapor in obtaining enhanced crystallinity of MAPbI 3 with enlarged grain size. Subsequently, various solvent vapors such as dimethyl sulfoxide (DMSO), Nmethylpyrrolidone (NMP), ethanol, and isopropanol (IPA) [38][39][40][41] have been used in SA for recrystallization of the perovskite films with improved film quality. However, whether the pinhole healing effect of SA recrystallization can be reproduced on pristine FAPbI 3 is still unknown.…”

Section: Introductionmentioning

confidence: 99%

Pinhole Healing of Pristine FAPbI₃ Films via Homogeneous Recrystallization with Mixed Vapor of Tetramethylene Sulfoxide and Anisole

Chen,

Hou,

Wang

et al. 2024

Adv Materials Inter

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The preparation of pristine formamidinium lead tri‐iodide (FAPbI3) perovskite films for solar cells applications can be very challenging without methylammonium containing additives. The pinhole‐rich films prepared by methylammonium‐free approach limit the performance of the pristine FAPbI3 perovskite solar cells (PSCs). This work proposes a recrystallization method employing mixed solvent annealing (MSA) to heal the pinholes in pristine FAPbI3 perovskite films. The tetramethylene sulfoxide vapor is demonstrated most effective in grains‐merging and pinhole healing, while the addition of a secondary solvent vapor of anisole significantly improved the uniformity of TMSO vapor distribution. The pristine FAPbI3 PSCs prepared with MSA recrystallized film achieved power conversion efficiencies up to 22.43% and 16.54% on small cells (0.105 cm2) and mini‐modules (12.6 cm2), respectively, showing great potential in upscaling fabrication of perovskite photovoltaics with pristine FAPbI3.

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Chlorobenzene solvent annealing of perovskite thin films for improving efficiency and reproducibility of perovskite solar cells

Yuan

Hao

et al. 2022

J Mater Sci: Mater Electron

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Reveal the growth mechanism in perovskite films via weakly coordinating solvent annealing

Abstract: ABSTRACT

Cited by 12 publications

References 55 publications

Space-confined growth of metal halide perovskite crystal films

Space-confined growth of metal halide perovskite crystal films

Pinhole Healing of Pristine FAPbI₃ Films via Homogeneous Recrystallization with Mixed Vapor of Tetramethylene Sulfoxide and Anisole

Chlorobenzene solvent annealing of perovskite thin films for improving efficiency and reproducibility of perovskite solar cells

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Reveal the growth mechanism in perovskite films via weakly coordinating solvent annealing

Abstract: ABSTRACT

Cited by 12 publications

References 55 publications

Space-confined growth of metal halide perovskite crystal films

Space-confined growth of metal halide perovskite crystal films

Pinhole Healing of Pristine FAPbI3 Films via Homogeneous Recrystallization with Mixed Vapor of Tetramethylene Sulfoxide and Anisole

Chlorobenzene solvent annealing of perovskite thin films for improving efficiency and reproducibility of perovskite solar cells

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Pinhole Healing of Pristine FAPbI₃ Films via Homogeneous Recrystallization with Mixed Vapor of Tetramethylene Sulfoxide and Anisole