Hf4 As4

semiconductor

· Hf4 As4

Hf4As4 is a hafnium arsenide compound semiconductor belonging to the refractory metal-pnictide family, characterized by high thermal and chemical stability. This material is primarily of research and exploratory interest for advanced electronic and optoelectronic applications where extreme operating conditions, wide bandgap semiconducting properties, or high-frequency performance are required. Engineers would consider hafnium arsenides in next-generation power electronics, high-temperature device research, or specialized RF/microwave applications where conventional semiconductors reach their operational limits.

high-temperature electronics researchwide-bandgap semiconductorsrefractory semiconductor compoundsadvanced optoelectronic devicesexperimental materials development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	129.9	GPa	—
Shear Modulus(G)	73.97	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00530	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-1.007	eV/atom	—

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

Regulatory Screening

Environmental

Export Control

Quality & Standards

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.

Hf4 As4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control

Quality & Standards