CdGeO3
CdGeO3 is a semiconducting oxide material with potential applications in the development of transparent electronics.
About CdGeO3
CdGeO3 is a semiconducting oxide that belongs to the class of transparent conducting materials. Its electronic structure and crystalline arrangement make it a subject of interest for researchers exploring new functional oxides for optoelectronic applications.
As a near-hull material, it is considered potentially synthesizable and stable enough for experimental investigation. Its role in the field is defined by the ongoing search for stable, wide-range semiconducting oxides that can bridge the gap between traditional insulators and conductive materials.
Key Properties
Cross-validated computational properties for CdGeO3, aggregated across 5 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of CdGeO3. Tight agreement means computed properties can be trusted without re-running calculations.
Agreement ScoreA normalized confidence score summarizing how closely independent DFT databases agree. Higher scores mean tighter cross-source agreement.
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
Reported Structures
Lowest-energy structures reported for CdGeO3, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| — | — | 0.00 | 0.0050 | -1.698 | — |
| R-3 (No. 148) | trigonal | 1.61 | 0.0056 | -1.565 | — |
| — | — | 1.92 | 0.0100 | -1.693 | — |
| — | — | 1.54 | 0.0184 | -1.685 | — |
| — | — | — | 0.0222 | -1.681 | — |
| C2/c (No. 15) | monoclinic | 1.50 | 0.0232 | -5.942 | 5.91 |
| I41/a (No. 88) | tetragonal | 1.30 | 0.0388 | -5.927 | 6.21 |
| R-3 (No. 148) | trigonal | 1.43 | 0.0440 | -5.922 | 6.51 |
| Pnma (No. 62) | orthorhombic | 1.04 | 0.0778 | -1.493 | — |
| — | — | 0.00 | 0.1170 | -1.586 | — |
| Cmc21 (No. 36) | orthorhombic | 1.72 | 0.1186 | -5.847 | 5.00 |
| — | — | 1.34 | 0.1188 | -1.584 | — |
Synthesis Routes
Literature-extracted synthesis procedures targeting CdGeO3.
Applications
Where CdGeO3 is used.
Frequently Asked Questions
Common questions about CdGeO3, answered from cross-validated data.
What is CdGeO3?
CdGeO3 is a semiconducting oxide material with potential applications in the development of transparent electronics.
What is CdGeO3 used for?
What is the band gap of CdGeO3?
Is CdGeO3 a metal, semiconductor, or insulator?
Is CdGeO3 thermodynamically stable?
What is the crystal structure of CdGeO3?
What is the density of CdGeO3?
How many polymorphs of CdGeO3 are known?
How is CdGeO3 synthesized?
What elements does CdGeO3 contain?
Where does the data for CdGeO3 come from?
How It Compares
Within the transparent conducting oxides class.
Within the diverse family of transparent conducting oxides, CdGeO3 occupies a unique space compared to well-established materials like ZnO or BaSnO3. While ZnO is widely utilized for its robust conductivity and established synthesis routes, CdGeO3 represents a more specialized candidate that offers different structural possibilities for researchers looking beyond standard zinc-based systems.
Related Compounds
Other Transparent Conducting Oxides in the database.
Data sources & attribution
- oqmd — Data from the OQMD (oqmd.org). Cite: Saal et al., JOM 65, 1501 (2013); Kirklin et al., npj Comp. Mater. 1, 15010 (2015). (CC-BY-4.0)
- jarvis — Data from JARVIS (jarvis.nist.gov), NIST. Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020). (LicenseRef-US-Gov-PD)
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (CC-BY-4.0)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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