Ge2K2S8Y2

Ge2K2S8Y2 is a stable, semiconducting quaternary sulfide compound containing germanium, potassium, sulfur, and yttrium.

GeKSY
Crystal structure of Ge2K2S8Y2
Ground-state structure · Materials Project
Overview

About Ge2K2S8Y2

Ge2K2S8Y2 is a complex quaternary sulfide compound composed of germanium, potassium, sulfur, and yttrium. As a thermodynamically stable material situated on the convex hull, it represents a well-defined structural arrangement within its chemical system.

This compound exhibits semiconducting electronic character, making it an interesting candidate for investigations into solid-state physics and materials design. Its composition suggests potential utility in specialized optoelectronic or structural applications where stable, multicomponent sulfide frameworks are required.

At a glance

Key Properties

Cross-validated computational properties for Ge2K2S8Y2, aggregated across 3 databases.

Band Gap

2.42 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
1 DFT source

Structures

3
3 databases, 2 space groups
Uses

Applications

Where Ge2K2S8Y2 is used.

Solid-state materials researchSemiconductor device developmentChalcogenide framework studies
Reference

Frequently Asked Questions

Common questions about Ge2K2S8Y2, answered from cross-validated data.

What is Ge2K2S8Y2?

Ge2K2S8Y2 is a stable, semiconducting quaternary sulfide compound containing germanium, potassium, sulfur, and yttrium.

More questions
What is Ge2K2S8Y2 used for?
Ge2K2S8Y2 is used in solid-state materials research, semiconductor device development, and chalcogenide framework studies.
What is the band gap of Ge2K2S8Y2?
Ge2K2S8Y2 has a DFT-computed band gap of 2.42 eV across 3 reported structures.
Is Ge2K2S8Y2 a metal, semiconductor, or insulator?
With a band gap up to 2.42 eV it is a semiconductor.
Is Ge2K2S8Y2 thermodynamically stable?
Yes — Ge2K2S8Y2 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of Ge2K2S8Y2 are known?
3 structures of Ge2K2S8Y2 are reported across 3 databases, spanning 2 distinct space groups.
What elements does Ge2K2S8Y2 contain?
Ge2K2S8Y2 contains Ge, K, S, and Y (4 elements).
Where does the data for Ge2K2S8Y2 come from?
Ge2K2S8Y2 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a unique quaternary sulfide, Ge2K2S8Y2 serves as an important reference point for understanding the interplay between alkali metals, transition metals, and rare-earth elements in complex chalcogenide frameworks. It provides a stable baseline for exploring the electronic and structural diversity found in similar multicomponent sulfide systems.

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

Analyze Ge2K2S8Y2 in the Lattice Graph platform

Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.

Explore the Platform →