A comparative study of two-step and three-step methods for coating organometallic lead halide perovskite thin films

More, Sagar A.; Halor, Rajendra G.; Shaikh, Raees; Ghosh, Sanjay S.

doi:10.1007/s10854-020-04351-1

Cited by 3 publications

(4 citation statements)

References 23 publications

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“…As proved in the XRD result, the undoped film is not stable with a lot of PbI 2 , which is also observed in the corresponding SEM images. [9,19,22] Compared to the fresh film, the cross-sectional SEM image of undoped perovskite film based on aged solution exhibit voids, and the grains are destroyed (Figure 3a). This phenomenon is caused by the by-products and reduced monomers in the aged precursor solution.…”

Section: Ma I Ma Himentioning

confidence: 99%

“…[8] The high reproducibility of PSCs is crucial to their commercialization. Numerous strategies have been reported to improve the reproducibility of PSCs to date, such as two-step deposition, [9] hot casting method [10] and mix solvent approach, [11] and additive engineering. [12][13][14][15][16][17][18][19] However, the majority of these methods are based on fresh solutions for modification.…”

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confidence: 99%

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Reactive Inhibition Strategy for Triple‐cation Mixed‐halide Perovskite Ink with Prolonged Shelf‐life

Xing

Peng

et al. 2022

Advanced Energy Materials

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Solution processing of perovskite solar cells (PSCs) is highly promising for the high‐throughput production of cost‐effective devices. Although PSCs have achieved great advances in power conversion efficiency, challenges still remain in the reproducibility of high‐quality perovskite thin film with simultaneously improved precursor solution stability. Here, a reactive inhibition strategy by introducing diethyl (hydroxymethyl) phosphonate (DHP) in perovskite precursor solution is successfully employed to improve the stability of precursor solution and the performance of corresponding device. DHP inhibits the reactivity of the iodide and formamidinium ions through multiple chemical bonds, ensuring the stability of the precursor solution. In addition, due to chelation interaction of Pb2+ with the oxygen of PO in DHP, the DHP in the perovskite film improves the film quality with desired stoichiometry by reducing the defects and the content of lead iodide. The DHP‐doped precursor solution and corresponding devices show excellent performance reproducibility and super stability under ambient conditions for more than 50 days, which illustrates the commercial feasibility for scalable fabrication.

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Section: Ma I Ma Himentioning

confidence: 99%

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confidence: 99%

Reactive Inhibition Strategy for Triple‐cation Mixed‐halide Perovskite Ink with Prolonged Shelf‐life

Xing

Peng

et al. 2022

Advanced Energy Materials

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“…For further improvements, many efforts have been made to modify this halide perovskite by replacing A and X ions with various possible cations and anions. Halide perovskites offer several advantages as active materials in solar cells because of their low production cost [ 1 ], facile solution-based synthesis [ 2 ], and excellent optical absorption for efficient solar energy conversion [ 3 ]. To date, these perovskite materials have shown a wide range of potential applications, not only for solar cells [ 4 ] but also for light-emitting devices [ 5 , 6 ], lasers [ 7 ], photodetectors [ 8 ], etc.…”

Section: Introductionmentioning

confidence: 99%

Crystal structures and photoluminescence characteristics of cesium lead bromide perovskite nanoplatelets depending on the antisolvent and ligand used in their syntheses

Yandri,

Nurunnizar,

Debora

et al. 2024

Heliyon

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“…Currently, several different methods have been developed for fabricating dense CsPbBr 3 perovskite films with uniform thickness, such as solution processing methods including one-step spin-coating [ 20 , 21 ], two-step spin-coating [ 22 , 23 , 24 , 25 , 26 , 27 ], spray coating [ 28 , 29 , 30 , 31 , 32 ], and ink-jet printing [ 33 , 34 ]. In these methods, substrate heating has some preliminary applications in the current research related to perovskite thin films.…”

Section: Introductionmentioning

confidence: 99%

High-Efficiency CsPbBr3 Light-Emitting Diodes using One-Step Spin-Coating In Situ Dynamic Thermal Crystallization

Zhang

Chen

2023

Micromachines

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All-inorganic perovskite materials (such as CsPbBr3) have received widespread attention because of their better stability than hybrid counterparts, but their poor film morphology and crystalline quality limit their application in perovskite light-emitting devices (PeLEDs). Some previous studies have attempted to improve the morphology and crystalline quality of perovskite films by heating the substrate, but there are still some problems such as inaccurate temperature control, excessive temperature is not conducive to flexible applications, and the mechanism of action is not clear. In this work, we used a one-step spin-coating, low-temperature in situ thermally assisted crystallization process, in which the temperature was accurately monitored using a thermocouple in the range of 23–80 °C, and explored the effect of the in situ thermally assisted crystallization temperature on the crystallization of the all-inorganic perovskite material CsPbBr3 and the performance of PeLEDs. In addition, we focused on the influence mechanism for the in situ thermally assisted crystallization process on the surface morphology and phase composition of the perovskite films and promote its possible application in inkjet printing and scratch coating methods.

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A comparative study of two-step and three-step methods for coating organometallic lead halide perovskite thin films

Cited by 3 publications

References 23 publications

Reactive Inhibition Strategy for Triple‐cation Mixed‐halide Perovskite Ink with Prolonged Shelf‐life

Reactive Inhibition Strategy for Triple‐cation Mixed‐halide Perovskite Ink with Prolonged Shelf‐life

Crystal structures and photoluminescence characteristics of cesium lead bromide perovskite nanoplatelets depending on the antisolvent and ligand used in their syntheses

High-Efficiency CsPbBr3 Light-Emitting Diodes using One-Step Spin-Coating In Situ Dynamic Thermal Crystallization

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