Ferroelectric perovskite thin films as nonvolatile computer memories

Singh, Rajveer; Tripathi, Archana; Gautam, Meenakshi

doi:10.1016/b978-0-323-99529-0.00007-2

Perovskite Metal Oxides 2023

DOI: 10.1016/b978-0-323-99529-0.00007-2

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Ferroelectric perovskite thin films as nonvolatile computer memories

Rajveer Singh

Archana Tripathi

Meenakshi Gautam³

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2024

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Switchable Bulk Photovoltaic Effect in Intrinsically Ferroelectric 3D All-Inorganic CsPbBr₃ Perovskite Nanocrystals

Ghosh,

Paul,

Das

et al. 2024

ACS Nano

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Ferroelectric all-inorganic halide perovskite nanocrystals with both spontaneous polarization and visible light absorption are promising candidates for designing ferroelectric photovoltaic applications. It remains a challenge to realize ferroelectric photovoltaic devices with all-inorganic halide perovskites that can be operated in the absence of an external electric field. Here we report that a popular allinorganic halide perovskite nanocrystal, CsPbBr 3 , exhibits a ferroelectricity-driven photovoltaic effect under visible light in the absence of an external electric field. Pristine CsPbBr 3 nanocrystals exhibit intrinsic ferroelectric key properties with a notable saturated polarization of ∼0.15 μC/cm 2 and a high Curie temperature of 462 K, driven by the stereochemical activity of the Pb(II) lone pair. Furthermore, application of an external electric field allows the photovoltaic effect to be enhanced and the spontaneous polarization to be switched with the direction of the electric field. CsPbBr 3 nanocrystals exhibit a robust fatigue performance and a prolonged photoresponse under continuous illumination in the absence of an external electric field. These findings establish all-inorganic halide perovskite nanocrystals as potential candidates for designing photoferroelectric devices by coupling optical functionalities and ferroelectric responses.

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Switchable Bulk Photovoltaic Effect in Intrinsically Ferroelectric 3D All-Inorganic CsPbBr₃ Perovskite Nanocrystals

Ghosh,

Paul,

Das

et al. 2024

ACS Nano

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show abstract

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Ferroelectric perovskite thin films as nonvolatile computer memories

Cited by 1 publication

References 69 publications

Switchable Bulk Photovoltaic Effect in Intrinsically Ferroelectric 3D All-Inorganic CsPbBr₃ Perovskite Nanocrystals

Switchable Bulk Photovoltaic Effect in Intrinsically Ferroelectric 3D All-Inorganic CsPbBr₃ Perovskite Nanocrystals

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Ferroelectric perovskite thin films as nonvolatile computer memories

Cited by 1 publication

References 69 publications

Switchable Bulk Photovoltaic Effect in Intrinsically Ferroelectric 3D All-Inorganic CsPbBr3 Perovskite Nanocrystals

Switchable Bulk Photovoltaic Effect in Intrinsically Ferroelectric 3D All-Inorganic CsPbBr3 Perovskite Nanocrystals

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Product

Resources

About

Switchable Bulk Photovoltaic Effect in Intrinsically Ferroelectric 3D All-Inorganic CsPbBr₃ Perovskite Nanocrystals

Switchable Bulk Photovoltaic Effect in Intrinsically Ferroelectric 3D All-Inorganic CsPbBr₃ Perovskite Nanocrystals