UCd2O5
UCd2O5 is a semiconducting oxide material with potential utility in the field of transparent electronics.
About UCd2O5
UCd2O5 is a complex oxide material characterized by its semiconducting electronic nature. As a member of the transparent conducting oxide class, it represents a unique intersection of heavy element chemistry and optoelectronic functionality, offering a distinct structural framework for researchers investigating new conductive materials.
This compound is notable for its position near the thermodynamic stability hull, suggesting it is a viable candidate for experimental synthesis. With multiple reported structures across major databases, it serves as an intriguing subject for studies into how uranium and cadmium coordination influence charge transport properties in oxide systems.
Key Properties
Cross-validated computational properties for UCd2O5, aggregated across 3 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 UCd2O5. 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 UCd2O5, 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. |
|---|---|---|---|---|---|
| — | — | 2.93 | 0.0161 | -2.204 | — |
| C2/c (No. 15) | monoclinic | 2.09 | 0.0208 | -7.244 | 7.50 |
| C2/c (No. 15) | monoclinic | 2.10 | 0.0355 | -2.240 | — |
| C2/c (No. 15) | monoclinic | — | — | — | 7.99 |
| C2/c (No. 15) | monoclinic | — | — | — | 7.50 |
| C2/c (No. 15) | monoclinic | — | — | — | 7.69 |
Applications
Where UCd2O5 is used.
Frequently Asked Questions
Common questions about UCd2O5, answered from cross-validated data.
What is UCd2O5?
UCd2O5 is a semiconducting oxide material with potential utility in the field of transparent electronics.
What is UCd2O5 used for?
What is the band gap of UCd2O5?
Is UCd2O5 a metal, semiconductor, or insulator?
Is UCd2O5 thermodynamically stable?
What is the crystal structure of UCd2O5?
What is the density of UCd2O5?
How many polymorphs of UCd2O5 are known?
What elements does UCd2O5 contain?
Where does the data for UCd2O5 come from?
How It Compares
Within the transparent conducting oxides class.
Within the diverse family of transparent conducting oxides, UCd2O5 occupies a specialized niche compared to more conventional materials like ZnO or BaSnO3. While ZnO is widely utilized for its high transparency and conductivity, UCd2O5 provides a more complex structural alternative, potentially offering different band engineering opportunities for specialized electronic devices.
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)
- materials_project — Data from the Materials Project (materialsproject.org). Cite: Jain et al., APL Materials 1, 011002 (2013). (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)
- mpaloe — Data from MP-ALOE. Cite: Kuner et al., npj Comput. Mater. (2025), doi:10.1038/s41524-025-01834-9.
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