Co4 Ge4

semiconductor

· Co4 Ge4

Co₄Ge₄ is an intermetallic semiconductor compound composed of cobalt and germanium in a 1:1 stoichiometric ratio. This material belongs to the family of transition metal germanides, which are primarily of research interest for their unique electronic and structural properties. While not yet widely commercialized, Co₄Ge₄ and related cobalt-germanium compounds are investigated for potential applications in thermoelectric devices, magnetic semiconductors, and advanced electronics where the interplay between magnetic and semiconducting behavior could be exploited.

thermoelectric energy conversion (research)magnetic semiconductor devices (experimental)advanced electronics and optoelectronics (developmental)materials research and characterizationhigh-performance computing applications (exploratory)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	137.6	GPa	—
Shear Modulus(G)	67.54	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.06300	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.1930	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.

Co4 Ge4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control