KGe

KGe is a thermodynamically stable semiconducting compound composed of potassium and germanium.

GeK
Crystal structure of KGe
Ground-state structure · Materials Project
Overview

About KGe

KGe is a distinct binary compound composed of potassium and germanium. As a thermodynamically stable material situated on the convex hull, it represents a robust phase within its chemical system, offering a reliable structural foundation for further investigation. Its electronic character as a semiconductor makes it a subject of interest for fundamental studies in solid-state physics and materials design. The compound is characterized by a significant degree of structural diversity, as evidenced by the numerous reported configurations found across major materials databases. This structural richness suggests a complex interplay between its constituent elements, providing researchers with a versatile platform to explore how atomic arrangement influences electronic behavior in semiconducting systems.

At a glance

Key Properties

Cross-validated computational properties for KGe, aggregated across 4 databases.

Band Gap

0.91–1.01 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

56
4 databases, 16 space groups
Uses

Applications

Where KGe is used.

Semiconductor researchSolid-state chemistry studiesMaterials science exploration
Reference

Frequently Asked Questions

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

What is KGe?

KGe is a thermodynamically stable semiconducting compound composed of potassium and germanium.

More questions
What is KGe used for?
KGe is used in semiconductor research, solid-state chemistry studies, and materials science exploration.
What is the band gap of KGe?
KGe has a DFT-computed band gap of 0.91–1.01 eV across 56 reported structures.
Is KGe a metal, semiconductor, or insulator?
With a band gap up to 1.01 eV it is a semiconductor.
Is KGe thermodynamically stable?
Yes — KGe sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of KGe are known?
56 structures of KGe are reported across 4 databases, spanning 16 distinct space groups.
What elements does KGe contain?
KGe contains Ge and K (2 elements).
Where does the data for KGe come from?
KGe data is cross-referenced from latticegraph.
Comparison

How It Compares

As a standalone entry in this context, KGe serves as a primary example of a stable binary semiconductor within the alkali metal-germanide family, demonstrating the structural versatility inherent in these types of intermetallic frameworks.

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

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