SiSe2

semiconductor
· SiSe2

SiSe₂ is a layered semiconductor compound composed of silicon and selenium, belonging to the class of chalcogenide semiconductors. It is primarily of research and developmental interest rather than an established commercial material, with potential applications in optoelectronic devices, photodetectors, and energy conversion systems where its tunable bandgap and layer-dependent properties could be leveraged. Engineers considering SiSe₂ should recognize it as an emerging material suitable for exploratory projects in next-generation photovoltaics, 2D device engineering, and specialty sensing applications, though manufacturing scalability and long-term reliability data remain limited compared to silicon or established III-V semiconductors.

photodetectors and optoelectronicsexperimental photovoltaics2D semiconductor researchinfrared sensingthermal imaging devicesnanoelectronics prototyping

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)
Pa
Poisson's Ratio(ν)
-
Shear Modulus(G)
Pa
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)3 entries
eV
eV
eV
Dielectric Constant (Relative Permittivity)(εr)2 entries
-
-
Electronic Dielectric Tensor(ε∞)
Matrix (redacted)
-
Total Dielectric Tensor(ε)
Matrix (redacted)
-
Magnetic Moment(μB)
µB
Piezoelectric Modulus(eij)
C/m²
Seebeck Coefficient(S)
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
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
eV/atom
Formation Energy(ΔHf)
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.