CsGe

CsGe is a stable, semiconducting binary compound formed from cesium and germanium.

CsGe
Crystal structure of CsGe
Ground-state structure · Materials Project
Overview

About CsGe

CsGe is a binary inorganic compound composed of cesium and germanium. As a thermodynamically stable phase located on the convex hull, it represents a robust structural configuration that has been extensively documented across various crystallographic databases.

This material exhibits semiconducting electronic characteristics, making it an object of interest for fundamental studies in solid-state physics. Its stable nature provides a reliable baseline for researchers investigating the interplay between alkali metals and group fourteen elements in semiconductor design.

At a glance

Key Properties

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

Band Gap

0.98–1.33 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
1 DFT source

Structures

46
3 databases, 13 space groups
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of CsGe. Tight agreement means computed properties can be trusted without re-running calculations.

Agreement Score

1.00 / 1.00
Trust tier: medium

Hull Spread

0.000 eV
EAH spread across sources

Sources Compared

1
materials_project

Space Group Consensus

All match
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting CsGe.

Solid State
Procedure available · ceder_solid_state
Uses

Applications

Where CsGe is used.

Semiconductor researchSolid-state physics investigationsMaterials science modeling
Reference

Frequently Asked Questions

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

What is CsGe?

CsGe is a stable, semiconducting binary compound formed from cesium and germanium.

More questions
What is CsGe used for?
CsGe is used in semiconductor research, solid-state physics investigations, and materials science modeling.
What is the band gap of CsGe?
CsGe has a DFT-computed band gap of 0.98–1.33 eV across 46 reported structures.
Is CsGe a metal, semiconductor, or insulator?
With a band gap up to 1.33 eV it is a semiconductor.
Is CsGe thermodynamically stable?
Yes — CsGe sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of CsGe are known?
46 structures of CsGe are reported across 3 databases, spanning 13 distinct space groups.
How is CsGe synthesized?
Literature-reported routes for CsGe include solid state.
What elements does CsGe contain?
CsGe contains Cs and Ge (2 elements).
Where does the data for CsGe come from?
CsGe data is cross-referenced from latticegraph.
Comparison

How It Compares

As a distinct binary phase, CsGe serves as a primary example of stable cesium-germanium intermetallics. It occupies a unique position within the broader landscape of alkali-metal germanides, offering a well-defined structural framework that contrasts with more complex or less stable compositions in the same chemical family.

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

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