Ge2O6Zn2

Zinc germanate · Zn2GeO4

Zinc germanate is an inorganic crystalline compound that functions as a wide-gap semiconductor. It is primarily utilized for its luminescent properties and its ability to facilitate chemical reactions when exposed to light.

Crystal structure of Ge2O6Zn2 (trigonal, R-3 (No. 148))
Ground-state structure · Materials Project
Overview

Key Properties

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

Band Gap

1.38–2.12 eV
Range across DFT structures

Energy Above Hull

0.059 eV/atom
Best (lowest) across sources

Stability

Metastable
2 DFT sources

Structures

16
3 databases, 5 space groups
Crystallography

Reported Structures

Lowest-energy structures reported for Ge2O6Zn2, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
R-3 (No. 148)trigonal2.120.0591-6.1125.97
R3c (No. 161)trigonal1.380.1312-6.0406.22
Pm-3m (No. 221)cubic0.000.6150-5.5565.99
R-3 (No. 148)
R3c (No. 161)
R-3 (No. 148)
I4/mcm (No. 140)
I4/mcm (No. 140)
R-3c (No. 167)
R3c (No. 161)
R3c (No. 161)
R-3c (No. 167)
Uses

Applications

Where Zinc germanate is used.

PhotocatalysisPhosphor materialsGas sensingOptoelectronic devices
Reference

Frequently Asked Questions

Common questions about Zinc germanate, answered from cross-validated data.

What is Ge2O6Zn2?

Zinc germanate is an inorganic crystalline compound that functions as a wide-gap semiconductor. It is primarily utilized for its luminescent properties and its ability to facilitate chemical reactions when exposed to light.

More questions
What is Ge2O6Zn2 used for?
Zinc germanate (Ge2O6Zn2) is used in photocatalysis, phosphor materials, gas sensing, and optoelectronic devices.
What is the band gap of Ge2O6Zn2?
Zinc germanate (Ge2O6Zn2) has a DFT-computed band gap of 1.38–2.12 eV across 16 reported structures.
Is Ge2O6Zn2 a metal, semiconductor, or insulator?
With a band gap up to 2.12 eV it is a semiconductor.
Is Ge2O6Zn2 thermodynamically stable?
Zinc germanate (Ge2O6Zn2) has a lowest energy above hull of 0.059 eV/atom (metastable).
What is the crystal structure of Ge2O6Zn2?
The lowest-energy reported polymorph of Zinc germanate (Ge2O6Zn2) is trigonal symmetry, space group R-3 (No. 148).
What is the density of Ge2O6Zn2?
The computed density of the ground-state structure of Zinc germanate (Ge2O6Zn2) is 5.97 g/cm³.
How many polymorphs of Ge2O6Zn2 are known?
16 structures of Ge2O6Zn2 are reported across 3 databases, spanning 5 distinct space groups.
What elements does Ge2O6Zn2 contain?
Zinc germanate (Ge2O6Zn2) contains Ge, O, and Zn (3 elements).
Where does the data for Ge2O6Zn2 come from?
Ge2O6Zn2 data is cross-referenced from materials_project, aflow, omat24.
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Related Compounds

Other Spinel Oxide Catalysts in the database.

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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