Cd2GeO4

Cd2GeO4 is a thermodynamically stable semiconducting oxide used in materials science research for its potential in optoelectronic applications.

Crystal structure of Cd2GeO4 (orthorhombic, Pnma (No. 62))
Ground-state structure · Materials Project
Overview

About Cd2GeO4

Cd2GeO4 is a thermodynamically stable inorganic compound that exists on the convex hull, indicating significant structural robustness. As a member of the transparent conducting oxide class, it exhibits semiconducting electronic behavior, making it a subject of interest for optoelectronic research and material design.

The compound is characterized by a well-documented structural profile, with multiple reported configurations across major databases. Its stability and electronic properties position it as a notable candidate for investigations into advanced oxide materials that require both transparency and controlled conductivity.

At a glance

Key Properties

Cross-validated computational properties for Cd2GeO4, aggregated across 3 databases.

Band Gap

1.09 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
2 DFT sources

Structures

5
3 databases, 1 space group
Crystallography

Reported Structures

Lowest-energy structures reported for Cd2GeO4, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
Pnma (No. 62)orthorhombic1.090.0000-5.5246.19
Pnma (No. 62)Orthorhombic5.95
Pnma (No. 62)Orthorhombic6.36
Pnma (No. 62)Orthorhombic6.13
Pnma (No. 62)
Uses

Applications

Where Cd2GeO4 is used.

Optoelectronic device researchTransparent conducting oxide developmentSemiconductor material studies
Reference

Frequently Asked Questions

Common questions about Cd2GeO4, answered from cross-validated data.

What is Cd2GeO4?

Cd2GeO4 is a thermodynamically stable semiconducting oxide used in materials science research for its potential in optoelectronic applications.

More questions
What is Cd2GeO4 used for?
Cd2GeO4 is used in optoelectronic device research, transparent conducting oxide development, and semiconductor material studies.
What is the band gap of Cd2GeO4?
Cd2GeO4 has a DFT-computed band gap of 1.09 eV across 5 reported structures.
Is Cd2GeO4 a metal, semiconductor, or insulator?
With a band gap up to 1.09 eV it is a semiconductor.
Is Cd2GeO4 thermodynamically stable?
Yes — Cd2GeO4 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of Cd2GeO4?
The lowest-energy reported polymorph of Cd2GeO4 is orthorhombic symmetry, space group Pnma (No. 62).
What is the density of Cd2GeO4?
The computed density of the ground-state structure of Cd2GeO4 is 6.19 g/cm³.
How many polymorphs of Cd2GeO4 are known?
5 structures of Cd2GeO4 are reported across 3 databases, spanning 1 distinct space group.
What elements does Cd2GeO4 contain?
Cd2GeO4 contains Cd, Ge, and O (3 elements).
Where does the data for Cd2GeO4 come from?
Cd2GeO4 data is cross-referenced from materials_project, mpaloe, jarvis.
Comparison

How It Compares

Within the transparent conducting oxides class.

Within the broader class of transparent conducting oxides, Cd2GeO4 occupies a distinct niche compared to widely utilized materials like ZnO or BaSnO3. While ZnO is a foundational industry standard for conductive coatings, Cd2GeO4 offers a different structural framework that contributes to the diversity of the ternary oxide landscape, providing researchers with alternative pathways for tuning semiconducting performance in complex oxide systems.

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Related Compounds

Other Transparent Conducting Oxides in the database.

Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • mpaloe — Data from mpaloe.
  • jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).

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