Rb2TeBr6 is a halide perovskite semiconductor compound composed of rubidium, tellurium, and bromine, representing an emerging class of materials in photovoltaic and optoelectronic research. This material family is being actively investigated as an alternative to lead-based perovskites for solar cells and light-emitting devices, offering potential advantages in stability and toxicity profiles. The lead-free composition makes it particularly attractive for researchers seeking environmentally benign semiconductors, though it remains primarily in the experimental phase rather than established industrial production.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 16.47 | GPa | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G) | 8.380 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.156 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 2.140 | eV | — | ||
| ↳ | 1.925 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)3 entries | 12.39 | - | — | ||
| ↳ | 8.206 | - | — | ||
| ↳ | 6.697 range 4.213–9.181median of 2 measurements | - | — | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | — | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -208.8 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00190 | eV/atom | — | ||
Formation Energy(ΔHf) | -1.108 | eV/atom | — |