BiSI

Name: BiSI
Brand: MatWorld

semiconductor

· BiSI

BiSi is a binary semiconductor compound combining bismuth and silicon, representing an emerging material in the broader family of group V–IV heterostructures. This is primarily a research material being explored for its potential in next-generation optoelectronic and thermoelectric devices, where the combination of elements offers tunable band gap and carrier mobility characteristics distinct from conventional silicon or bismuth telluride compounds.

thermoelectric devicesoptoelectronic semiconductorstwo-dimensional materials researchinfrared detectorsphotovoltaic developmentmaterials physics research

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	3,166.2	ksi	DFT · OptB88vdW
Exfoliation Energy(Eexf)	221.5	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	1,644.7	ksi	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2338	lb/in³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	1.560	eV	Measured
↳	1.767	eV	DFT · OptB88vdW
↳	2.407	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	76.41	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	11.08	-	DFT · OptB88vdW
↳	8.446	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.9800	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.173	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00251	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00189	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-222.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	359.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	14.49	%	DFT · TBmBJ

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, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.4652	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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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.

BiSI — Properties & Data | MatWorld

BiSI

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