Calcium germanate (CaGeO3) is an inorganic ceramic semiconductor compound combining alkaline earth and group IV elements in a perovskite-like crystal structure. This material remains primarily in research and development phases, with potential applications in photonic devices, scintillation detectors, and wide-bandgap optoelectronic components where its semiconductor properties could enable UV-sensitive or radiation-detection functionality. Its selection would be driven by specialized optical or radiation-sensing requirements where the calcium-germanate system offers advantages in transparency, thermal stability, or detection efficiency compared to conventional semiconductors, though commercial availability and manufacturability are currently limited.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 175.2 | GPa | DFT · OptB88vdW | ||
Poisson's Ratio(ν) | 0.2500 | - | DFT · OptB88vdW | ||
Shear Modulus(G) | 104.1 | GPa | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.973 | kg/m³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 2.100 | eV | DFT · GLLB-SC | ||
| ↳ | 3.551 | eV | DFT · OptB88vdW | ||
Dielectric Constant (Relative Permittivity)(εr) | 57.45 | - | DFT · OptB88vdW | ||
Magnetic Moment(μB)2 entries | -0.0000221 | μB | DFT | ||
| ↳ | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | DFT · OptB88vdW | ||
Thermoelectric Power Factor(PF)2 entries | 0.000975 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.000212 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -138.1 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 409.3 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.05400 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf)3 entries | 0.1600 | eV/atom | DFT | ||
| ↳ | -2.453 | eV/atom | DFT · OptB88vdW | ||
| ↳ | -2.664 | eV/atom | Measured |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data