CdCO3
Otavite · Cadmium carbonate
Otavite is a stable, naturally occurring semiconducting cadmium carbonate utilized in materials science research.
About Otavite
CdCO3, known mineralogically as otavite, is a thermodynamically stable compound that sits securely on the convex hull. As a semiconducting material, it plays a specialized role in the broader family of transparent conducting oxides, offering unique electronic properties for researchers investigating light-transparent conductive pathways.
Its structural versatility is evidenced by its presence across multiple databases, reflecting its importance in inorganic chemistry. By bridging the gap between simple carbonates and functional electronic materials, it serves as a critical subject for studies into the synthesis and stability of cadmium-based compounds in technological applications.
Key Properties
Cross-validated computational properties for Otavite, aggregated across 4 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.
Reported Structures
Lowest-energy structures reported for CdCO3, 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. |
|---|---|---|---|---|---|
| R-3c (No. 167) | trigonal | 2.62 | 0.0000 | -6.762 | 4.96 |
| P21/c (No. 14) | monoclinic | 0.00 | 0.5672 | -6.195 | 4.07 |
| R-3m (No. 166) | trigonal | 0.00 | 2.8887 | -3.873 | 4.41 |
| R-3m (No. 166) | trigonal | 0.00 | 3.2333 | -3.529 | 4.05 |
| R-3c (No. 167) | Trigonal | — | — | — | 4.74 |
| R-3m (No. 166) | — | — | — | — | — |
| R-3c (No. 167) | Trigonal | — | — | — | 5.02 |
| R-3c (No. 167) | — | — | — | — | — |
| No. 0 | unknown | — | — | — | 1.05 |
| R-3c (No. 167) | Trigonal | — | — | — | 4.83 |
Applications
Where Otavite is used.
Frequently Asked Questions
Common questions about Otavite, answered from cross-validated data.
What is CdCO3?
Otavite is a stable, naturally occurring semiconducting cadmium carbonate utilized in materials science research.
What is CdCO3 used for?
What is the band gap of CdCO3?
Is CdCO3 a metal, semiconductor, or insulator?
Is CdCO3 thermodynamically stable?
What is the crystal structure of CdCO3?
What is the density of CdCO3?
How many polymorphs of CdCO3 are known?
What elements does CdCO3 contain?
Where does the data for CdCO3 come from?
How It Compares
Within the transparent conducting oxides class.
While many members of the transparent conducting oxide class, such as ZnO or BaSnO3, are primarily recognized for their high electrical conductivity and optical transparency, CdCO3 occupies a more nuanced position. Unlike the complex spinel structures found in ZnGa2O4 or ZnFe2O4, otavite maintains a distinct carbonate framework that influences its electronic behavior, making it a unique alternative to the more conventional binary and ternary oxides typically utilized in optoelectronic devices.
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).
- cod — Data from the Crystallography Open Database. Cite: Grazulis et al., Nucleic Acids Res. 40, D420 (2012).
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