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

A dataset from figshare, authored by Alaelddin Michailidis Barakat and last updated on 2026-04-27. It describes a unique family of inorganic halide perovskites based on noble metals, synthesized using a 'stick & square' approach. The compounds have a general formula of A₄Au₂Pd□X₁₂, crystallize in a pseudocubic unit cell, and exhibit bandgaps in the 0.8–1.55 eV range.

Use Cases

• Modeling bandgap properties for photovoltaic materials based on the described 0.8–1.55 eV range.
• Analyzing crystal structure and symmetry in vacancy-ordered perovskites based on the described pseudocubic unit cell with 4×4×4 enlargement.
• Studying the stability of inorganic semiconductors against air and water based on the described merits over typical p-block halide perovskites.
• Investigating the relationship between halide ion electronegativity and spectral response based on the XPS analysis mentioned.

Strengths

• Includes experimentally determined bandgap values in the 0.8–1.55 eV range.
• Describes a specific family of compounds with the general formula A₄Au₂Pd□X₁₂ (A = Cs, Rb; X = Cl, Br, I).
• Provides details on synthesis method ('stick & square' approach) and crystal morphology (deltoidal icositetrahedral).

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 (687.0 B), indicating limited scope, likely containing descriptive text rather than extensive data tables.

Provenance

Source

figshare

Collection Method

Synthesized compounds characterized via X-ray photoelectron spectroscopy (XPS) and Density Functional Theory (DFT) calculations.

Time Range

The temporal coverage of the underlying research is not specified.

Freshness

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

Geography

The spatial coverage of the underlying research is not specified.