Structural Distortions Control Scaling of Exciton Binding Energies in Two-Dimensional Ag/Bi Double Perovskites

Pierre Lechifflart; Raisa-Ioana Biega; Linn Leppert

doi:10.1039/d5nr03010b

January 1, 2025NanoscaleOpen Access

Structural Distortions Control Scaling of Exciton Binding Energies in Two-Dimensional Ag/Bi Double Perovskites

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Key Points

Exciton binding energies demonstrate notable variations influenced by structural distortions in two-dimensional perovskites.
The presence of organic spacer cations significantly impacts the excitonic properties of materials like Ag/Bi double perovskites.
The anisotropic electronic structure of these materials contributes to their distinct excitonic effects and binding energies.
The findings carry implications for the design of efficient optoelectronic devices using advanced perovskite materials.

Implication

This analysis reveals exciton binding energies across two-dimensional perovskites, suggesting structural distortions play a crucial role.

Abstract

Three-dimensional metal halide double perovskites such as Cs 2 AgBiBr 6 exhibit pronounced excitonic effects due to their anisotropic electronic structure and chemical localization effects. Their two-dimensional derivatives, formed by inserting organic spacer...

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Cite This Study

Lechifflart et al. (2025) studied this question.

synapsesocial.com/papers/68dc1e438a7d58c25ebb247a https://doi.org/10.1039/d5nr03010b

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Structural Distortions Control Scaling of Exciton Binding Energies in Two-Dimensional Ag/Bi Double Perovskites

Key Points

Implication

Abstract

Discussion

Cite This Study

Structural Distortions Control Scaling of Exciton Binding Energies in Two-Dimensional Ag/Bi Double Perovskites

Key Points

Implication

Abstract

Discussion

Cite This Study

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