Cd3Te
This is a binary inorganic compound composed of cadmium and tellurium. It is primarily studied in the context of materials science research regarding semiconductor properties and thin-film development.
Overview
Key Properties
Cross-validated computational properties for Cd3Te, 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.
0.309 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.
Above hull
4 DFT sources
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
12
5 databases, 5 space groups
Crystallography
Reported Structures
Lowest-energy structures reported for Cd3Te, 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. |
|---|---|---|---|---|---|
| I4/mmm (No. 139) | tetragonal | 0.00 | 0.3094 | -21.404 | 7.37 |
| R-3m (No. 166) | — | — | — | — | — |
| — | — | — | — | — | 7.44 |
| I4/mmm (No. 139) | — | — | — | — | — |
| Pm (No. 6) | Monoclinic | — | — | — | 4.73 |
| — | — | — | — | — | 7.54 |
| P1 (No. 1) | Triclinic | — | — | — | 4.58 |
| — | — | — | — | — | 7.54 |
| P-1 (No. 2) | Triclinic | — | — | — | 4.03 |
| P-1 (No. 2) | Triclinic | — | — | — | 3.97 |
| Pm (No. 6) | Monoclinic | — | — | — | 4.98 |
| Pm (No. 6) | Monoclinic | — | — | — | 4.62 |
Uses
Applications
Where Cd3Te is used.
Semiconductor researchMaterials science studies
Reference
Frequently Asked Questions
Common questions about Cd3Te, answered from cross-validated data.
What is Cd3Te?
This is a binary inorganic compound composed of cadmium and tellurium. It is primarily studied in the context of materials science research regarding semiconductor properties and thin-film development.
More questions
What is Cd3Te used for?
Cd3Te is used in semiconductor research and materials science studies.
What is the band gap of Cd3Te?
Cd3Te is computed to be metallic (no band gap) in the reported DFT structures.
Is Cd3Te a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is Cd3Te thermodynamically stable?
Cd3Te has a lowest energy above hull of 0.309 eV/atom (above hull).
What is the crystal structure of Cd3Te?
The lowest-energy reported polymorph of Cd3Te is tetragonal symmetry, space group I4/mmm (No. 139).
What is the density of Cd3Te?
The computed density of the ground-state structure of Cd3Te is 7.37 g/cm³.
How many polymorphs of Cd3Te are known?
12 structures of Cd3Te are reported across 5 databases, spanning 5 distinct space groups.
What elements does Cd3Te contain?
Cd3Te contains Cd and Te (2 elements).
Where does the data for Cd3Te come from?
Cd3Te data is cross-referenced from materials_project, nomad, omat24, jarvis, mpaloe.
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Related Compounds
Other II-VI Semiconductors in the database.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- nomad — Data from NOMAD. Cite: Draxl & Scheffler, J. Phys. Mater. 2, 036001 (2019).
- omat24 — Data from OMat24 (Meta FAIR). Cite: Barroso-Luque et al., arXiv 2410.12771 (2024).
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
- mpaloe — Data from mpaloe.
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