K4BaGe3O9 is a barium germanate ceramic compound composed of potassium, barium, germanium, and oxygen. This material belongs to the family of germanate ceramics, which are primarily of research interest for optical and electronic applications due to their unique crystal structures and potential photonic properties. While not widely deployed in mainstream engineering, germanate ceramics are investigated for scintillation detection, laser hosts, and specialty optical devices where their transparency and luminescence characteristics may offer advantages over conventional alternatives.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.630 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 3.407 | eV | DFT · OptB88vdW | ||
| ↳ | 5.458 | eV | DFT · TBmBJ | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 3.120 | - | DFT · OptB88vdW | ||
| ↳ | 2.415 | - | DFT · TBmBJ | ||
Thermoelectric Power Factor(PF)2 entries | 0.000757 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.0000614 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -109.1 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 416.1 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 0.000 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -2.071 | 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