SiSn
semiconductor· SiSn
SiSn is a silicon-tin compound semiconductor material that combines the two group IV elements to create a tunable bandgap material. While not yet commercialized at production scale, SiSn is actively researched as a potential next-generation semiconductor for optoelectronic and photonic applications, offering the possibility of direct bandgap engineering and monolithic integration with existing silicon infrastructure—advantages over conventional indirect-bandgap silicon.
infrared optoelectronicsphotonic integrated circuitsmid-infrared detectorssilicon photonics integrationthin-film research applicationsbandgap engineering research
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 4.347 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.5900 | eV | — | ||
| ↳ | 0.2480 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 28.76 | - | — | ||
| ↳ | 24.66 range 24.53–24.80median of 2 measurements | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.2446 | C/m² | — | ||
Seebeck Coefficient(S) | -142.8 | µV/K | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.1596 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.1572 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.