Ag28As4S24

Ag28As4S24 is a semiconducting silver arsenic sulfide compound that is theoretically predicted to be stable enough for laboratory synthesis.

AgAsS
Crystal structure of Ag28As4S24
Ground-state structure · Materials Project
Overview

About Ag28As4S24

Ag28As4S24 is a complex semiconducting quaternary chalcogenide composed of silver, arsenic, and sulfur. Its electronic structure and composition place it within a specialized group of materials often investigated for their unique transport properties and structural versatility.

As a near-hull compound, it is considered a promising candidate for experimental synthesis. Its existence across multiple structural databases highlights its significance as a stable or metastable phase within the silver-arsenic-sulfur ternary system, providing a platform for exploring advanced semiconductor physics.

At a glance

Key Properties

Cross-validated computational properties for Ag28As4S24, aggregated across 3 databases.

Band Gap

0.73 eV
Range across DFT structures

Energy Above Hull

0.006 eV/atom
Best (lowest) across sources

Stability

Near hull (likely stable)
2 DFT sources

Structures

4
3 databases, 1 space group
Uses

Applications

Where Ag28As4S24 is used.

Semiconductor researchChalcogenide glass developmentOptoelectronic material studies
Reference

Frequently Asked Questions

Common questions about Ag28As4S24, answered from cross-validated data.

What is Ag28As4S24?

Ag28As4S24 is a semiconducting silver arsenic sulfide compound that is theoretically predicted to be stable enough for laboratory synthesis.

More questions
What is Ag28As4S24 used for?
Ag28As4S24 is used in semiconductor research, chalcogenide glass development, and optoelectronic material studies.
What is the band gap of Ag28As4S24?
Ag28As4S24 has a DFT-computed band gap of 0.73 eV across 4 reported structures.
Is Ag28As4S24 a metal, semiconductor, or insulator?
With a band gap up to 0.73 eV it is a semiconductor.
Is Ag28As4S24 thermodynamically stable?
Ag28As4S24 has a lowest energy above hull of 0.006 eV/atom (near hull (likely stable)).
How many polymorphs of Ag28As4S24 are known?
4 structures of Ag28As4S24 are reported across 3 databases, spanning 1 distinct space group.
What elements does Ag28As4S24 contain?
Ag28As4S24 contains Ag, As, and S (3 elements).
Where does the data for Ag28As4S24 come from?
Ag28As4S24 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a distinct member of the silver arsenic sulfide family, Ag28As4S24 represents a unique stoichiometry that differentiates it from simpler binary or ternary chalcogenides. It occupies a specific niche in the phase space, serving as an important reference point for understanding how silver and arsenic coordination environments influence the semiconducting behavior of complex sulfide frameworks.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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