Cu2GeS3 — Properties & Data | MatWorld

Cu2GeS3

Name: Cu2GeS3
Brand: MatWorld

semiconductor

· Cu2GeS3

Cu₂GeS₃ is a quaternary semiconductor compound combining copper, germanium, and sulfur, belonging to the family of chalcogenide semiconductors with potential for optoelectronic and photovoltaic applications. This material exists primarily in research and development contexts rather than as an established commercial product, where it is being investigated for thin-film solar cells, photodetectors, and other light-energy conversion devices due to its tunable bandgap and earth-abundant constituent elements. Interest in Cu₂GeS₃ stems from its potential to replace rare or toxic semiconductor materials while offering favorable optical and electronic properties for next-generation energy harvesting systems.

thin-film solar cellsphotodetectorslight-energy conversion researchchalcogenide semiconductorsphotovoltaic devicesoptoelectronic components

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	4.333	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.5300	eV	Measured
↳	0.1300	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	19.77	-	DFT · OptB88vdW
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
↳	0.00199	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-128.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	268.2	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)	0.00330	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3796	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.

Cu2GeS3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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