BaCu2SnSe4 — Properties & Data | MatWorld

BaCu2SnSe4

Name: BaCu2SnSe4
Brand: MatWorld

semiconductor

· BaCu2SnSe4

BaCu₂SnSe₄ is a quaternary chalcogenide semiconductor compound belonging to the family of metal selenides, characterized by a complex crystal structure combining barium, copper, and tin cations with selenium anions. This material is primarily of research interest for optoelectronic and thermoelectric applications, with potential advantages over conventional semiconductors due to its tunable bandgap and relatively high atomic mass, which can reduce phonon-assisted heat transport. While not yet widely commercialized, compounds in this material class are being investigated as alternatives to lead-based perovskites and other toxic semiconductors for next-generation photovoltaic devices, infrared detectors, and solid-state cooling applications.

photovoltaic researchinfrared detectionthermoelectric devicesoptoelectronic semiconductorsnon-toxic semiconductor alternativesmaterials screening for energy conversion

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	5.369	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.4270	eV	DFT · OptB88vdW
↳	0.4800	eV	Measured
High-Frequency Dielectric Constant (ε∞)(ε∞)	12.01	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.1733	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	0.8067	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00115	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00156	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-133.2	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	342.1	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.02100	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.7579	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

Regulatory Screening

Environmental

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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.

BaCu2SnSe4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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