Bi2

semiconductor
· Bi2

Bi2 is a bismuth-based semiconductor compound, likely referring to bismuth diselenide (Bi2Se3) or a related binary bismuth chalcogenide phase. This material belongs to the family of topological insulators and layered semiconductor materials that exhibit unusual electronic properties due to their crystal structure and strong spin-orbit coupling. Bi2-based semiconductors are primarily investigated in advanced electronics and optoelectronics, including thermoelectric devices for waste heat recovery, high-speed transistors, and topological quantum computing applications. The material is valued for its narrow bandgap, high carrier mobility, and unique surface electronic states, making it attractive where conventional semiconductors cannot match performance—particularly in thermal management systems and next-generation quantum devices.

thermoelectric devicestopological electronicshigh-speed optoelectronicsinfrared detectorsquantum computing researchwaste heat recovery systems

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)2 entries
34.48
GPa—
↳
6.080
GPa—
Poisson's Ratio(ν)
0.1400
-—
Shear Modulus(G)2 entries
14.35
GPa—
↳
3.430
GPa—
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
Density(ρ)
3.899
kg/m³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
0.01310
eV—
↳
0.000
eV—
Magnetic Moment(μB)
0.000
µB—
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)
1.603
eV/atom—
Formation Energy(ΔHf)2 entries
0.000
eV/atom—
↳
1.574
eV/atom—
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

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.