CuTe
Copper telluride · Vulcanite
Copper telluride is a binary inorganic compound composed of copper and tellurium. It is primarily studied for its semiconducting properties and its potential utility in advanced electronic and optoelectronic devices.
CuTe
Overview
Key Properties
Cross-validated computational properties for Copper telluride, 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.
Metallic / not reported
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.
0.000 eV/atom
Best (lowest) across sources
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.
On hull (stable)
3 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
79
5 databases, 18 space groups
Validation
Cross-Source DFT Agreement
How well independent DFT databases agree on the thermodynamics of CuTe. 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.
1.00 / 1.00
Trust tier: high
Hull SpreadDifference between the highest and lowest energy-above-hull values reported by comparable sources. Smaller spread means less thermodynamic disagreement.
0.000 eV
EAH spread across sources
Sources ComparedNumber and names of computational sources with comparable entries for this formula.
3
jarvis, materials_project, nomad
Space Group ConsensusWhether independent sources predict the same crystal symmetry for the lowest-energy structure.
All match
Crystallography
Reported Structures
Lowest-energy structures reported for CuTe, 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. |
|---|---|---|---|---|---|
| Pmmn (No. 59) | orthorhombic | 0.00 | 0.0000 | -18.216 | 6.71 |
| Pmmn (No. 59) | orthorhombic | 0.00 | 0.1012 | -18.115 | 7.72 |
| I4/mmm (No. 139) | tetragonal | 0.00 | 0.1110 | -18.105 | 7.65 |
| Pmmn (No. 59) | orthorhombic | 0.00 | 0.1124 | -18.104 | 7.65 |
| Pmmn (No. 59) | orthorhombic | 0.00 | 0.8106 | -17.406 | 1.73 |
| Cm (No. 8) | Monoclinic | — | — | — | 7.45 |
| Fm-3m (No. 225) | — | — | — | — | — |
| Pmmn (No. 59) | — | — | — | — | — |
| P-1 (No. 2) | Triclinic | — | — | — | 4.00 |
| P-1 (No. 2) | Triclinic | — | — | — | 5.07 |
| P-1 (No. 2) | Triclinic | — | — | — | 8.34 |
| P1 (No. 1) | Triclinic | — | — | — | 6.06 |
Uses
Applications
Where Copper telluride is used.
Photovoltaic cellsThermoelectric materialsSemiconductor researchThin film coatings
Reference
Frequently Asked Questions
Common questions about Copper telluride, answered from cross-validated data.
What is CuTe?
Copper telluride is a binary inorganic compound composed of copper and tellurium. It is primarily studied for its semiconducting properties and its potential utility in advanced electronic and optoelectronic devices.
More questions
What is CuTe used for?
Copper telluride (CuTe) is used in photovoltaic cells, thermoelectric materials, semiconductor research, and thin film coatings.
What is the band gap of CuTe?
Copper telluride (CuTe) is computed to be metallic (no band gap) in the reported DFT structures.
Is CuTe a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is CuTe thermodynamically stable?
Yes — Copper telluride (CuTe) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of CuTe?
The lowest-energy reported polymorph of Copper telluride (CuTe) is orthorhombic symmetry, space group Pmmn (No. 59).
What is the density of CuTe?
The computed density of the ground-state structure of Copper telluride (CuTe) is 6.71 g/cm³.
How many polymorphs of CuTe are known?
79 structures of CuTe are reported across 5 databases, spanning 18 distinct space groups.
What elements does CuTe contain?
Copper telluride (CuTe) contains Cu and Te (2 elements).
Where does the data for CuTe come from?
CuTe data is cross-referenced from materials_project, mpaloe, jarvis, nomad.
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).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
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