The influence of perovskite crystal structure on its stability

Bi, Hualin; Wang, Mengke; Liu, Lei; Yan, Jiahe; Zeng, Rongfei; Xu, Zhang; Wang, Jun

doi:10.1039/d3ta07457a

J. Mater. Chem. A

2024

DOI: 10.1039/d3ta07457a

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The influence of perovskite crystal structure on its stability

Hualin Bi,

Mengke Wang,

Lei Liu

et al.

Abstract: Perovskite materials exhibit excellent optical and electronic properties, but they are highly sensitive to water, heat, and light, limiting their commercial applications. Although the stability of various perovskites has been...

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Cited by 4 publications

References 45 publications

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Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI₃ Perovskite Single Crystals

Ogunleye,

Lee,

Awwal

et al. 2024

Adv Materials Inter

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Lattice distortion in perovskites (AMX3) significantly impacts their stability and power conversion efficiency, often in a trade‐off. The inherent lattice distortion is predominantly influenced by the size, orientation, and composition of the A‐site cations. Notably, organic–inorganic hybrid lead halide perovskites with organic cations like methylammonium (MA) and formamidinium (FA) demonstrate high power conversion efficiency but compromised stability. Here, a novel synthesis method is presented for high‐quality strained MAPbI3 single crystals that offers not only enhanced optoelectronic properties but also improved thermal stability. This technique leverages the paramagnetic nature of the MA+ ion to manipulate lattice distortion. During the inverse temperature crystallization process, the dipole moment of the MA+ ion aligns with the direction of the external magnetic field. Correlating Fourier‐transform infrared spectroscopy (FTIR) and X‐ray diffraction (XRD) analysis demonstrates that this alignment, which induces compressive lattice strain, significantly enhances the carrier mobility from 68.1 to 487 cm2 V s−1, representing a sevenfold increase in hole mobility compared to the control sample. Additionally, it increases the carrier lifetime by 123%, from 23.458 to 52.364 ns, and improves thermal stability up to 230 °C. This findings reveal insights into the interplay between structural modifications and electronic properties, paving the way for tailored applications in photovoltaics, light‐emitting devices, and beyond.

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Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI₃ Perovskite Single Crystals

Ogunleye,

Lee,

Awwal

et al. 2024

Adv Materials Inter

View full text Add to dashboard Cite

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Rapid Microwave Annealing for Improved Crystallinity and Morphology of Perovskite Materials

Sakib,

Payne,

Kim

et al. 2024

Solar RRL

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Perovskite solar cells are gaining significant attention for their remarkable power conversion efficiency, cost‐effective processing, and material abundance. This study investigates the impact of rapid microwave annealing on the crystallinity and morphology of MAPbI3 films on FTO glass substrates. Multifaceted characterization techniques, including field emission scanning electron microscopy (FESEM), X‐ray diffraction (XRD), UV–Vis spectroscopy, photothermal deflection spectroscopy (PDS), and steady‐state photoluminescence (PL) measurements are used to compare microwave‐annealed samples with traditional hotplate‐annealed samples. Microwave annealing yields significantly larger crystals in shorter processing times, suggesting enhanced crystallinity, as evidenced by SEM analysis and XRD data. UV‐Vis and PDS measurements indicate improved optical properties and reduced sub‐bandgap states, while PL results suggest diminished nonradiative recombination in microwave‐annealed samples. However, a partial film detachment has been observed at higher microwave powers, a phenomenon explained by COMSOL simulations. These findings demonstrate rapid microwave annealing as an energy‐efficient and cost‐effective alternative while highlighting the need for further optimization to address film degradation issues, which remain a significant challenge. This research supports the potential for scalable, high‐quality perovskite material production, facilitating large‐scale production and commercialization of next‐generation solar cells.

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Dual-drive acoustic micromixer for rapid nucleation and ultrafast growth of perovskite nanoparticles

Liu,

Lu,

Tan

et al. 2025

Lab Chip

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The influence of perovskite crystal structure on its stability

Abstract: Perovskite materials exhibit excellent optical and electronic properties, but they are highly sensitive to water, heat, and light, limiting their commercial applications. Although the stability of various perovskites has been...

Cited by 4 publications

References 45 publications

Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI₃ Perovskite Single Crystals

Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI₃ Perovskite Single Crystals

Rapid Microwave Annealing for Improved Crystallinity and Morphology of Perovskite Materials

Dual-drive acoustic micromixer for rapid nucleation and ultrafast growth of perovskite nanoparticles

Contact Info

Product

Resources

About

The influence of perovskite crystal structure on its stability

Abstract: Perovskite materials exhibit excellent optical and electronic properties, but they are highly sensitive to water, heat, and light, limiting their commercial applications. Although the stability of various perovskites has been...

Cited by 4 publications

References 45 publications

Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI3 Perovskite Single Crystals

Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI3 Perovskite Single Crystals

Rapid Microwave Annealing for Improved Crystallinity and Morphology of Perovskite Materials

Dual-drive acoustic micromixer for rapid nucleation and ultrafast growth of perovskite nanoparticles

Contact Info

Product

Resources

About

Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI₃ Perovskite Single Crystals

Inherent Lattice Distortion Engineering via Magnetic Field for High‐Quality Strained MAPbI₃ Perovskite Single Crystals