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

A dataset describing a synthesized family of inorganic halide perovskites based on noble metals. The compounds have a general formula of A₄Au₂Pd□X₁₂ (A = Cs, Rb; X = Cl, Br, I) and exhibit infrared absorption with bandgaps in the 0.8–1.55 eV range. The data was authored by Alaelddin Michailidis Barakat and last updated on 2026-04, with a file size of 6.1 KB.

Use Cases

• Modeling bandgap properties for photovoltaic applications based on the described infrared absorption range.
• Studying crystal structure and stability of vacancy-ordered perovskites based on the 'stick & square' synthesis approach.
• Analyzing the relationship between halide ion electronegativity and spectral response based on XPS data mentioned in the description.
• Training predictive models for material properties based on the compositional variations (A = Cs, Rb; X = Cl, Br, I).

Strengths

• Specific bandgap range of 0.8–1.55 eV is provided for the compounds.
• Detailed chemical formulas and synthesis method ('stick & square' approach) are described.
• File is small (6.1 KB), facilitating quick download and inspection.

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 (6.1 KB), indicating limited scope, likely containing descriptive text rather than extensive measurement data.

Provenance

Source

figshare

Collection Method

Synthesized compounds characterized via X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) calculations.

Time Range

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Freshness

Last updated 2026-04-27 17:35:23; freshness should be verified.

Geography

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