Al4As6K6

Al4As6K6 is a thermodynamically stable semiconducting compound containing aluminum, arsenic, and potassium.

AlAsK
Crystal structure of Al4As6K6 (monoclinic, P21/m (No. 11))
Ground-state structure · Materials Project
Overview

About Al4As6K6

Al4As6K6 is a complex inorganic compound composed of aluminum, arsenic, and potassium. As a thermodynamically stable material situated on the convex hull, it represents a robust phase within its compositional space, offering a well-defined structural framework for further scientific investigation.

This material exhibits semiconducting electronic character, making it an intriguing candidate for studies involving electronic transport and optoelectronic properties. Its existence across multiple reported structures highlights its significance as a stable building block in the exploration of ternary pnictide systems.

At a glance

Key Properties

Cross-validated computational properties for Al4As6K6, aggregated across 3 databases.

Band Gap

1.19 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

4
3 databases, 1 space group
Crystallography

Reported Structures

Lowest-energy structures reported for Al4As6K6, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
P21/m (No. 11)monoclinic1.190.0000-3.6702.93
P21/m (No. 11)
P21/m (No. 11)
2.34
Uses

Applications

Where Al4As6K6 is used.

Semiconductor researchSolid-state chemistryMaterials science exploration
Reference

Frequently Asked Questions

Common questions about Al4As6K6, answered from cross-validated data.

What is Al4As6K6?

Al4As6K6 is a thermodynamically stable semiconducting compound containing aluminum, arsenic, and potassium.

More questions
What is Al4As6K6 used for?
Al4As6K6 is used in semiconductor research, solid-state chemistry, and materials science exploration.
What is the band gap of Al4As6K6?
Al4As6K6 has a DFT-computed band gap of 1.19 eV across 4 reported structures.
Is Al4As6K6 a metal, semiconductor, or insulator?
With a band gap up to 1.19 eV it is a semiconductor.
Is Al4As6K6 thermodynamically stable?
Yes — Al4As6K6 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of Al4As6K6?
The lowest-energy reported polymorph of Al4As6K6 is monoclinic symmetry, space group P21/m (No. 11).
What is the density of Al4As6K6?
The computed density of the ground-state structure of Al4As6K6 is 2.93 g/cm³.
How many polymorphs of Al4As6K6 are known?
4 structures of Al4As6K6 are reported across 3 databases, spanning 1 distinct space group.
What elements does Al4As6K6 contain?
Al4As6K6 contains Al, As, and K (3 elements).
Where does the data for Al4As6K6 come from?
Al4As6K6 data is cross-referenced from materials_project, aflow, omat24.
Comparison

How It Compares

As a unique ternary phase, Al4As6K6 serves as a foundational example of stable aluminum-arsenic-potassium chemistry, providing a baseline for understanding how these elements organize into semiconducting structures without the need for comparison to other specific analogues.

Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • aflow — Data from AFLOW. Cite: Curtarolo et al., Comp. Mater. Sci. 58, 218 (2012).
  • omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).

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