Tm₂CdSe₄ is a ternary ceramic compound combining thulium, cadmium, and selenium—a rare-earth-based semiconductor ceramic with potential applications in optoelectronics and photonic materials. This material belongs to the family of chalcogenide semiconductors and is primarily of research interest rather than established industrial use; it is studied for its optical and electronic properties that may enable mid-infrared detectors, solid-state lasers, or specialized optical windows. Engineers would consider this compound for advanced photonic systems where rare-earth dopants and selenide chemistry offer unique wavelength tunability or nonlinear optical performance unavailable in more conventional ceramics.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 58.23 | GPa | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.3500 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 20.12 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 6.475 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.6680 | eV | DFT · OptB88vdW | ||
| ↳ | 1.643 | eV | DFT · TBmBJ | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 7.849 | - | DFT · OptB88vdW | ||
| ↳ | 5.510 | - | DFT · TBmBJ | ||
Electron Effective Mass(m*e) | 0.1900 | me | DFT · OptB88vdW · 27°C | ||
Hole Effective Mass(m*h) | 0.9600 | me | DFT · OptB88vdW · 27°C | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Thermoelectric Power Factor(PF)2 entries | 0.000339 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00234 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -58.90 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 283.1 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 30.29 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.01450 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -1.548 | eV/atom | DFT · OptB88vdW |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data