Vacancy-Ordered Quadruple Halide Perovskites: All-Inorganic Noble-Metal Semiconductors wit

A family of inorganic halide perovskites with a general formula of A₄Au₂Pd□X₁₂ (A = Cs, Rb; X = Cl, Br, I) was synthesized using a 'stick & square' approach. The dataset, a 7.1 KB text file uploaded by Alaelddin Michailidis Barakat in April 2026, describes compounds with a pseudocubic unit cell and experimentally determined bandgaps in the 0.8–1.55 eV range.

Use Cases

• Modeling bandgap properties for photovoltaic materials based on the described halide composition and vacancy ordering.
• Analyzing crystal structure and symmetry from the described pseudocubic unit cell with 4x4x4 enlargement.
• Investigating material stability for infrared electronics based on the reported air and water resistance.
• Studying the relationship between halide ion electronegativity and spectral response using the XPS data mentioned.

Strengths

• Dataset provides specific chemical formulas (A₄Au₂Pd□X₁₂) and bandgap ranges (0.8–1.55 eV).
• Describes a unique synthesis method ('stick & square' approach) and crystal morphology (deltoidal icositetrahedral).
• Includes validation via X-ray photoelectron spectroscopy (XPS) and Density Functional Theory (DFT) calculations.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is very small (7.1 KB), indicating limited scope, likely a descriptive document rather than a large data table.

Provenance

Source

figshare

Collection Method

Synthesized compounds characterized via X-ray diffraction, XPS, and DFT calculations.

Time Range

Publication date is 2026-04-27.

Freshness

Last updated 2026-04-27 17:35:24; freshness should be verified.

Geography

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