What does this research mean for the field?

Cs2AgBiCl6 exhibits a strong optical response suitable for optoelectronic applications, whereas Cs2AgBiBr6 possesses a higher figure of merit making it more promising for thermoelectric applications, with both functioning as indirect bandgap lead-free double perovskites. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to explore the structural, electronic, and thermoelectric properties of Cs2AgBiX6 double perovskites as lead-free alternatives to traditional halide perovskites.

June 15, 2026Physical Mesomechanics

Analysis of the Structural, Electronic, and Thermoelectric Properties of Lead–free Cs2AgBiX6 (X = Br, Cl) Double Perovskites for Non–Toxic Technologies

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Authors

KBK. BouferracheUniversity Ferhat Abbas of Setif MGM. A. GhebouliUniversity Ferhat Abbas of Setif MFM. FatmiUniversity Ferhat Abbas of Setif

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Implication

Analyzes the structural, electronic, and thermoelectric properties of lead-free Cs2AgBiX6 compounds, suggesting their applications in safer technologies.

Key Points

This research aims to explore the structural, electronic, and thermoelectric properties of Cs2AgBiX6 double perovskites as lead-free alternatives to traditional halide perovskites.
Utilized first-principles calculations based on Density Functional Theory within the WIEN2k framework.
Conducted geometry optimization and stability assessment for structural properties.
Analyzed electronic structure and bandgap using Generalized Gradient Approximation and Modified Becke–Johnson approximation.
Both Cs2AgBiBr6 and Cs2AgBiCl6 exhibit indirect bandgaps, with improved accuracy from the Modified Becke–Johnson approximation.
Cs2AgBiCl6 shows a stronger optical response, indicating potential for optoelectronic applications.
Cs2AgBiBr6 has a higher figure of merit for thermoelectric applications.

Cite This Study

Bouferrache et al. (2026) studied this question.

synapsesocial.com/papers/6a2f97c8a1cfeec490828cb9 https://doi.org/10.1134/s1029959925600648

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Implication

Analyzes the structural, electronic, and thermoelectric properties of lead-free Cs2AgBiX6 compounds, suggesting their applications in safer technologies.

Analysis of the Structural, Electronic, and Thermoelectric Properties of Lead–free Cs2AgBiX6 (X = Br, Cl) Double Perovskites for Non–Toxic Technologies

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Implication

Key Points

Cite This Study

Analysis of the Structural, Electronic, and Thermoelectric Properties of Lead–free Cs2AgBiX6 (X = Br, Cl) Double Perovskites for Non–Toxic Technologies

Discussion

Member takes

Implication

Key Points

Cite This Study

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